2014–2015: No.Mercy and debut 2015 in Los Angeles|upright=1|alt= The group was formed, as the result of the survival program called
No.Mercy, which was launched by
Starship Entertainment and
Mnet in December 2014. Through the course of ten episodes, twelve trainees; thirteen after I.M joined in episode eight, competed against each other through various performances and were ranked from one to twelve, with one being the highest and twelve being the lowest. They also have to wear a nametag with their ranking, which changed following the challenges and performances set by the judges. For the show, the participants worked directly with artists from Starship Entertainment, including
Hyolyn,
K.Will,
Mad Clown, and
Soyou, as well as other artists such as Rhymer,
San E,
Giriboy, and
Genius Nochang, who also served as judges in ranking the contestants. For the concluding mission, the nine remaining trainees formed into three groups of three to compete, while the members of Monsta X were selected from these nine in the final episode as the seven members of the group:
Shownu,
Wonho,
Minhyuk,
Kihyun,
Hyungwon,
Jooheon, and
I.M.
No.Mercy also led to the 2014 spin-off web series
Deokspatch, which also began airing in December, which was meant to showcase a more casual and lighthearted side to the competition in order for people to get to know the trainees better. It also continued as
Deokspatch X in May 2015 and as
Deokspatch X² in October. These seasons focused on their participation in variety show activities. The group's name "Monsta X" contains the double meaning of "Monsters conquering the K-pop scene" and "My star" (Mon means "My" in French), then X symbolizes an unknown existence. Their
fandom name "Monbebe" is also French for "my baby". Jooheon, Hyungwon, and I.M also released their song "Interstellar", which was produced for the final mission by Yella Diamond on February 12, 2015. Monsta X made their debut with the release of their first extended play
Trespass on May 14, 2015. "Trespass" is produced by Rhymer and described as a "strong and edgy track that reflects Monsta X's unique character".
Trespass includes seven different tracks. Jooheon was the most involved member in the production of the mini-album and composed several songs, including "One Love", "Steal Your Heart", and "Blue Moon". I.M was also involved in the rap making of several songs. Kihyun and Wonho contributed song lyrics for the EP. On September 1, the group returned with their second extended play titled
Rush. The title track of the same name is described as a song that represents their signature style, that produced by Giriboy. Keone Madrid choreographed the dance and
Joo Hee-sun directed the music video. The mini-album contains six tracks produced by Mad Clown, Crybaby and Rhymer. Jooheon also took part in making the rap for five out of the six tracks, while fellow member I.M was involved in four songs, including the title track "Rush". In 2015, they made their first U.S. appearance performing at
KCON 2015 in Los Angeles. Monsta X received the "Next Generation Asian Artist" award at
2015 Mnet Asian Music Awards and the "1theK Performance Award" at 2015
Melon Music Awards.
2016: Chinese ventures and first solo concert In January, the group released a new variety program
Monsta X Right Now!. The same month, they also appeared in a Chinese web drama
Good Evening, Teacher, receiving positive responses from local viewers. On May 9, Monsta X pre-released their single "Ex Girl", featuring
Wheein of
Mamamoo. On May 18, their third extended play
The Clan Pt. 1 Lost, with the lead single "All In" was released. Its music video was directed by filmmaker Shin Dong-keul, a former winner at the Canada International Film Festival and is known for his dreamy and euphoric style in producing music videos. The EP debuted at number five on
Billboard World Albums chart and stayed for two consecutive weeks on it. It is also the first part of
The Clan series. In July, they held their first solo concert
The First Live "X-Clan Origins" from July 16 to July 17, which sold out in five minutes. In August, Starship Entertainment formed a project group with Monsta X and their labelmate
WJSN as part of a promotional project with
KT. As part of its promotion, they released the single "Do Better", with an accompanying music video. On October 4, Monsta X released their fourth extended play and second part of
The Clan series
The Clan Pt. 2 Guilty, alongside the title track "Fighter". In December, the group received the "Best of Next Male Artist" award at
2016 Mnet Asian Music Awards.
2017: First studio album, Japanese debut and first world tour In January, they launched their own variety show
Monsta X-Ray through
JTBC2. On March 21, Monsta X released their first studio album and the final part of
The Clan series
The Clan Pt. 2.5: The Final Chapter, with the title track "Beautiful". The album debuted at number one on the
Billboard World Albums chart and at number ten on the
Billboard Heatseekers Albums chart, while the title track "Beautiful" debuted and peaked at number four on the
Billboard World Digital Song Sales chart. On May 17, the group made their debut in Japan with a Japanese single, under
Universal Music's new label
Mercury Records Tokyo, which included Japanese versions of "Hero" and "Stuck". "Hero" reached number two on the weekly
Oricon Singles Chart, number one on the
Tower Records chart, and number three on the weekly
Billboard Japan Hot 100 chart, making an impressive debut from a foreign artist. On June 19, they released a repackaged version of
The Clan Pt. 2.5: The Final Chapter called
Shine Forever, which features the original songs from the album and two extra tracks "Shine Forever" and "Gravity", as well as the music video for "Shine Forever". The title track "Shine Forever" combines
future bass and hip-hop styles and includes rap lyrics written by members Jooheon and I.M. Monsta X also began their first world tour
Beautiful in June. The group aired the second season of
Monsta X-Ray in July. They also released a promotional single "Newton" on July 27. The music video for the single was produced by Yoo Sung-kyun of SunnyVisual. On August 23, their second Japanese single was released. It contains the Japanese versions of "Beautiful" and "Ready or Not". It reached number one on
Oricon's daily chart. On November 7, Monsta X released their fifth extended play
The Code, with title track "Dramarama". On the same day, the group held a comeback show at
Jangchung Arena. On November 14, they won their first music broadcast award through
SBS MTV's
The Show with "Dramarama". On December 18, Monsta X released a special single "Lonely Christmas" as a surprise holiday release for their fans. It was written, produced, and co-composed by Jooheon.
2018: Second world tour, Japanese album and Take.1 Are You There? in 2018 On January 13, the group served as torchbearers for the Olympic torch relay in Seoul at the
2018 Pyeongchang Winter Olympics. On January 31, they released their third Japanese single, which included their first original Japanese track "Spotlight" and Japanese version of their previously released Korean track "Shine Forever", in which were previously performed for Monsta X Christmas Party 2017. From January 19 to February 18, Monsta X opened a collaboration cafe for a limited time at Shinjuku Box. In February, the group announced their second world tour
The Connect, with the first shows on May 26 and 27, held at
Jangchung Arena in Seoul. On March 26, they officially released their sixth EP
The Connect: Dejavu, which contains seven tracks including the title track "Jealousy", produced by Hayden Bell, Shane Simmons, and Harry Sommerdahland, with the tracks "If Only", co-written by Wonho and "Special", co-written by Jooheon. In this comeback, Monsta X won another music broadcast award through SBS MTV's
The Show. On April 25, the group released their first Japanese studio album
Piece with the lead title track "Puzzle", including the songs from their previous Japanese single albums and another four additional songs.
Piece reached number one on Tower Records chart all store, number three on the weekly
Oricon Albums Chart and
Billboard Japan Hot Albums chart. On April 27, they started their first Japan tour in Nagoya. On August 1, Monsta X released a music video for their Japanese comeback "Livin' It Up", while the single was officially released on September 12. On October 22, the group released the first part of their second studio album
Take.1 Are You There?, with the title track "Shoot Out". The English version of the song was released on November 9.
2019: Take.2 We Are Here, international expansion and Wonho's departure On January 20, they released the second part of their second studio album
Take.2 We Are Here, along with its lead single "Alligator". In February, Jooheon announced that he changed his stage name for English activities to Joohoney. In April, their agency Starship Entertainment, announced their third world tour
We Are Here, with twelve countries and eighteen cities, making it their largest to date. On May 28, the group signed with
Epic Records for their English language recordings and distribution outside South Korea. On June 14, they released a new English single titled "
Who Do U Love?" featuring
French Montana. On September 20, Monsta X released another English single titled "Love U" and "Who Do U Love?" remix version by
will.i.am. On October 4, the group released the English single "Someone's Someone", co-written by the
Before You Exit members and Shownu. On October 28, they released their seventh EP
Follow: Find You containing eight tracks, with the pre-released single "Find You" and the lead single "Follow". On October 31, Starship Entertainment announced that member Wonho would be departing, following recent allegations for drug use and owed money, and that the company intends to "hold legal liability" for "malicious and distorted claims" about him. The fans expressed their disapproval and requested of Starship Entertainment that he be reinstated in Monsta X. Wonho was then cleared of drug charges in March 2020 and was signed with a subsidiary of Starship Entertainment to pursue a solo career. In December, the group released a digital single "Magnetic", a collaboration with the Colombian singer
Sebastián Yatra, with him singing in Spanish and Monsta X singing in English and Spanish. They also performed at the MDL Beast Festival in Saudi Arabia, performing thirteen songs including "Play It Cool", alongside Steve Aoki.
2020: All About Luv, virtual concerts and Fatal Love On January 11, Joohoney announced that he would take a break from Monsta X to focus on his mental health. On February 14, the group released their sixth studio album and first all-English album
All About Luv. It debuted and peaked at number five on the US
Billboard 200 and at number seven on the US
Rolling Stone Top 200. On March 30, they released their seventh Japanese single "Wish on the Same Sky", ahead of the physical release on April 15. Upon the release, it ranked number one on the weekly Tower Records chart and number seven on the weekly
Billboard Japan Hot 100 chart. It also ranked number one overall for the first half of 2020 on the Tower Records chart. In April, Monsta X appeared on
MTV Unplugged at Home, performing "Beside U" and "
You Can't Hold My Heart". On May 26, the group released their eighth EP
Fantasia X, with the lead single "Fantasia". Prior to this comeback, Joohoney had already rejoined promotions with them and thus, they were a six-member group for the promotion of "Fantasia". Monsta X had announced their fourth world tour, but it was delayed due to
COVID-19 pandemic. Unable to perform at in-person concerts, the group participated in a live-streamed
KCON event Kcon:Tact 2020. They also announced that Monsta X would hold a live-streamed concert
Live From Seoul With Luv, which was originally scheduled for July 25, but then rescheduled on August 8, to allow Shownu to recover from the unexpected surgery he had undergone. The group held their concert through the music streaming platform
LiveXLive and performed several songs from their English-language album
All About Luv, as well as from their most recent Korean EP
Fantasia X and older title tracks. On November 2, they released their third studio album
Fatal Love, with the lead single "Love Killa". On November 21, Monsta X released a
soundtrack "How We Do", for the animated movie
The SpongeBob Movie: Sponge on the Run, alongside
Snoop Dogg. On December 16, the group released their eighth Japanese single, which included the Japanese versions of their title tracks "Love Killa" and "Fantasia".
2021: Shownu's enlistment, The Dreaming and first film In January, they were announced to be part of the artists featuring on NCSoft's new platform
Universe, beginning with an original series called
Area 51: The Code. Monsta X released a new Japanese single on March 10, with the title track "Wanted" and another original Japanese track "Neo Universe". "Wanted" was pre-released ahead of the physical release on February 10, while the music video was released on February 13. Following the release of "Wanted", the group announced the release of their third Japanese studio album
Flavors of Love, released on May 5, which includes their Japanese singles released since 2020, as well as five new Japanese tracks. In May, they announced the release of their ninth EP
One of a Kind, with the lead single "Gambler", set on June 1. Starship Entertainment also announced that Shownu will be on hiatus and will not participate in the upcoming promotional activities due to resurfacing issues of
retinal detachment. On June 15, their American managing partner
Eshy Gazit announced the launch of a new label venture Intertwine, in partnership with
BMG, with its first two artists being Monsta X and Wonho. The venture finalized a separate distribution deal, in partnership with Starship Entertainment, for their two upcoming Korean releases, as well as their second English-language album in 2021. On July 26, the group released the
promotional single "Kiss or Death" through
Universe Music for the mobile application Universe. In September, they announced their new English single "One Day", which was released on September 10. On November 19, Monsta X released their tenth EP
No Limit, with the lead single "Rush Hour". It was their first release to not feature Shownu since his enlistment. On December 10, the group released their second English-language album
The Dreaming, which includes their previously released single "One Day" and nine new tracks. They released a
documentary film/
concert film Monsta X: The Dreaming on December 8 in South Korea, and on December 9 and 11 in seventy countries worldwide. It contains interviews with the members, clips from their U.S. activities, special stages, and footage of the group's six-year journey. However, the group members had tested positive for COVID-19, and as a result, their comeback was postponed until April 26. Their U.S. tour, previously postponed due to the COVID-19 pandemic, was rescheduled for May and June with stops in nine cities. They also confirmed their appearance in the KCON event KCON 2022 Premiere. On May 9, Starship Entertainment announced that members Shownu, Kihyun, and Hyungwon had already decided to renew their contracts, while members Minhyuk, Joohoney, and I.M had discussed renewing their contracts. On August 8, Starship Entertainment released a statement announcing that all the members renewed their contracts, except I.M. He decided not to renew his contract with the agency but will still continue to participate in Monsta X's future plans. On July 7, the group released the promotional single "If with U" through Universe Music for the mobile application Universe. On July 21, they also released a new single titled "Late Night Feels" in collaboration with famous Dutch DJ
Sam Feldt. On August 12, Starship Entertainment announced that Monsta X will hold the
No Limit Tour in Seoul for three days on September 2 to 4, continuing the heat of their U.S. tour. On September 24, the group performed in the Lalapa K-Concert, held at Union Hall in
Bangkok, Thailand. On October 7, they participated in the 2022 Korean Culture Festival, held at
Seoul Olympic Stadium in
Seoul, South Korea. On October 22, Monsta X was supposed to headline
Nickelodeon's NickFest: The Messiest Music Festival Ever, to be held at the
Rose Bowl in
Pasadena, California, but it was cancelled due to "current market conditions". The group was supposed to headline the new mega concert KAMP LA 2022, a joint production from KAMP Global with the partnership brand Eventim Live Asia, at the same location, on October 16, but their appearance, alongside several other artists, was cancelled due to "
visa issues".
2023: International performances, Shownu's discharge and members' enlistment On January 9, they released their twelfth EP
Reason, with the lead single "
Beautiful Liar". In February, all Starship Entertainment's artists, including Monsta X, will be part of the mobile application
Dear U bubble after the closing of Universe. On February 10, the group took over the
metaverse in iHeartLand's State Farm Park, performing their hit songs, where several other artists, including
Charlie Puth,
Lauv, and
Pentatonix participated. They released their first "self-produced" content
MONMUKGO through their YouTube channel, starting on February 28. On March 3, Monsta X was featured in March issue of the magazine ''Children's Garden'' as "the leading figure in K-pop", with the theme of "voice". It will tackle their overall activities, including dancing and singing skills, as well as lyricist and composition skills, from the debut to the present. On April 4, Minhyuk enlisted for his mandatory military service as an active duty soldier. On April 21, the group attended and performed in the We Bridge Music Festival & Expo, held at the
Mandalay Bay Convention Center's
Michelob Ultra Arena in
Las Vegas,
Nevada, as its headliner. On the same day, Shownu was discharged from his mandatory military service as a social worker. On July 24, Joohoney enlisted for his mandatory military service as an active duty soldier. On August 22, Kihyun enlisted for his mandatory military service as an active duty soldier. On November 14, Hyungwon enlisted for his mandatory military service as an active duty soldier.
2024: Focus on solo activities and Minhyuk's discharge On January 1, it was announced that the remaining active members (Shownu and I.M) will focus on their individual activities. On April 24, Starship Entertainment announced that they will have the "Monsta X: Welcome Party" pop-up store, on May 9–15, in commemoration of their 9th debut anniversary. On October 3, Minhyuk was discharged from his mandatory military service as an active duty soldier.
2025: Members' discharge and group activities at
KCON LA in 2025 On January 22, it was revealed that the
B-side track "Beastmode", from their third studio album
Fatal Love, was used as an ending theme song for the South Korean animated film
Exorcism Chronicles: The Beginning. On January 23, Joohoney was discharged from his mandatory military service as an active duty soldier. On February 21, Kihyun was discharged from his mandatory military service as an active duty soldier. On May 13, Hyungwon was discharged from his mandatory military service as an active duty soldier. On May 14, Monsta x released the compilation album
Now Project Vol.1, composed of ten re-recorded tracks of all six members from 2021 to 2023 releases, in commemoration of their 10th debut anniversary. On May 15, it was announced that the group will have their 10th debut anniversary concert Connect X in Seoul on July 18–20, as well as in Japan on August 27–28. On May 22, it was announced that they will also have the "Monologue" pop-up store, on May 29 – June 11, in commemoration of their 10th debut anniversary. On July 26, Monsta X performed at
Waterbomb in Busan. In August, the group performed at KCON 2025 in Los Angeles. On August 18, they pre-released their digital single "Do What I Want". On September 2, Monsta X released their thirteenth EP
The X, with the lead single "N the Front". On November 14, the group released their English-language digital single "Baby Blue". On December 3, they released a concert film
Monsta X: Connect X in Cinema, in commemoration of their 10th debut anniversary. Monsta X performed at
iHeartRadio's Jingle Ball Tour on December 12, 15–16, and 20, in New York, Philadelphia, Washington D.C., and Miami, respectively.
2026: Fourth world tour, I.M's enlistment and Unfold The group held their fourth world tour
The X: Nexus, kicking off in Seoul for three days from January 30 to February 1. On February 6, they released their English digital single "Growing Pains". On February 9, I.M enlisted for his mandatory military service as an active duty soldier. On April 3, Monsta X will release their third English-language album
Unfold. ==Artistry==