2007–2014: Pre-debut Seulgi began training at
SM Entertainment in 2007. On December 2, 2013, she was one of the first three trainees introduced to the public through SM Entertainment's pre-debut project,
SM Rookies, alongside now-
NCT members
Jeno and
Taeyong. Various pre-debut clips of Seulgi were released by SM Entertainment, one of which was a dance performance of "Be Natural" by
S.E.S. with
Irene. In July 2014, Seulgi was featured on
Henry Lau's song "Butterfly" from his second EP
Fantastic. She also appeared in the music video of his single "Fantastic".
2014–2018: Debut with Red Velvet and solo activities On August 1, 2014, Seulgi made her official debut as a member of
Red Velvet. In January 2015, Seulgi starred in the musical
School Oz, playing the lead role of Dorothy. From April to May, she was part of the variety show
Off to School. In July 2016, Seulgi released "Don't Push Me" with bandmate
Wendy as part of the soundtrack of the television series
Uncontrollably Fond. In October, Seulgi competed on
King of Mask Singer under the alias Cinema Heaven. On November 18, she sang the theme song of the
MMORPG Blade & Soul, "You, Just Like That" (), although it was not officially released as a digital single until 2017. On December 30, Seulgi released the digital single "Sound of Your Heart" with Wendy and other SM artists for the digital music project
SM Station. In January 2017, Seulgi released "You're the Only One I See" with Wendy as part of the soundtrack of the drama
Hwarang: The Poet Warrior Youth. As part of SM Station, she also released the duet "Darling U" with labelmate
Yesung on January 22. In February, Seulgi and
Hwang Chi-yeul collaborated on the song "Our Story", which served as the final track for Hwang's duet project
Fall, in girl. In March, Seulgi featured on labelmate
Mark's "Drop", an original song performed on
High School Rapper. Seulgi was cast alongside six other female idols in the variety show
Idol Drama Operation Team, wherein they had to create their own television series, titled ''Let's Only Walk the Flower Road
, as scriptwriters and play fictional versions of themselves, who are part of a fictional music group. The group, called Girls Next Door, released the song "Deep Blue Eyes" and held their debut stage at Music Bank'' on July 14. That same month, Seulgi featured on labelmate
Taemin's song "Heart Stop" from his second studio album
Move. In February 2018, Seulgi was confirmed as part of the cast of
Law of the Jungle in Mexico. In April, she was confirmed as part of the cast of the variety show
Secret Unnie. She featured on
Moonbyul's debut single "Selfish", which was released on May 23. Seulgi and Wendy starred in the special 100th episode of
Battle Trip, which aired for the first time on July 21. In September, Seulgi released the digital single "
Wow Thing" with
Soyeon,
SinB, and
Chungha. In October, it was announced that Seulgi had been cast in the television show
Cool Kids. On October 15, she featured on
Zion.T's "Hello Tutorial", which reached number two on the
Gaon Digital Chart.
2019–present: Red Velvet sub-unit, Got the Beat and solo debut On February 12, 2019, Seulgi released "Always", a ballad about eternal love, for the soundtrack of
The Crowned Clown. On April 20, 2020, SM Entertainment confirmed that Seulgi would be part of Red Velvet's first sub-unit, alongside bandmate
Irene.
Red Velvet – Irene & Seulgi debuted on July 6 with the extended play (EP)
Monster. The EP contained the studio version of Seulgi's solo song "Uncover", which was first revealed during Red Velvet's third concert tour
La Rouge. She and Irene starred in the spin-off of Red Velvet's reality show
Level Up Project!. On November 23, it was announced that Seulgi would translate the series of art essays
Art Gallery By My Side: Love, Happiness, Sleep. On January 25, 2021, Seulgi featured in the music video for labelmate
Yunho's "Eeny Meeny". On February 1, Seulgi and rapper
Bewhy released a music video for the song "Born Confident" for a Volkswagen campaign. On March 30, it was announced that Seulgi would feature on Wendy's song "Best Friend" from her debut EP
Like Water. On April 2, it was announced that Seulgi would host a web music program,
The Wise Music Encyclopedia. On June 1, she started hosting her own live show,
Seulgi.zip, on
Naver Now. On June 7, Seulgi teamed up with NCT's Taeyong on the release of the demo song "Rose" on
SoundCloud. The duo co-composed the song with producer SQUAR. On December 28, Seulgi featured on
BamBam's song "Who Are You" from his second EP
B. On December 27, Seulgi was revealed as a member of the
supergroup Got the Beat, alongside bandmate Wendy. The group debuted on January 3, 2022. On September 13, 2022, it was announced that Seulgi would debut as a soloist with the release of her first EP, titled
28 Reasons, on October 4, led by the
single of the same name. On August 22, 2023, SM Entertainment announced it had "renewed an exclusive contract with Red Velvet's Seulgi". In December 2023, Seulgi sung the OST "Polaroid" for the Season 3 of the reality TV show
Unexpected Business. In January 2024, she sung another OST titled "In My Memory" for the drama
Doctor Slump. On February 6, she officially launched her own YouTube channel Hi Seulgi, mirroring the username of her Instagram account. The channel is set to showcase her trendy lifestyle through engaging content on fashion, beauty, and her favorite hobbies. On April 3, another OST sung by Seulgi was released and dedicated to the famous
Fu Bao panda, titled "You're My Joy and Luck ()". On May 4, she performed as a special guest for BamBam at his Area 52: The 1st World Tour Encore concert in Bangkok, Thailand – their first performance together after they recorded "Who Are You". On January 15, 2025, the legend diva
Kim Wan-sun collaborated with Seulgi for the digital release of the single "Lucky" produced by
JYP. Seulgi previously worked with her on a performance of "Tonight" and "Dance in the Rhythm" during the
Level Up Project! with Irene, and they also later performed together on the show
Dancing Queens on the Road. On February 18, SM Entertainment announced that Seulgi would be releasing her second EP
Accidentally on Purpose on March 10, with the lead single "Baby, Not Baby". ==Public image and influence==