2015–2020: Early career and Yoasobi Ikuta began her music career by
performing on the streets and small venues with a guitar at the age of 14, as well as uploading her music and covers on
YouTube. In 2015, she participated in several casting auditions, including Singin'Japan hosted by
Sony Music Entertainment Japan, where she was selected as a finalist. In 2016, she participated in the artist training course, the Lesson, sponsored by Sony Japan and released her demo CD
15 no Omoi. She later became a member of cover group until 2021. In February 2018, Ikuta made her debut televised appearance at '
. and ' in November 2019 through independent label After School. In 2020, Ikuta performed the Japanese version of the end-credit song "Rocket to the Moon" for the animated fantasy film
Over the Moon, and released a new single, "Hikari", accompanying Kissme's exhibition
Atta Koto Aru no ni, Hajime Mashite. In 2019, Ikuta was contacted by musician and record producer
Ayase, who had seen one of her cover videos on
Instagram and asked her if she was willing to start a music project with him and the creative writing social media
Monogatary.com, which became the start of the duo
Yoasobi. Their debut single "
Yoru ni Kakeru", which was released in late 2019, went
viral and became a musical success in Japan, beginning Yoasobi's rise to popularity in the Japanese music scene.
2021–2023: Sketch On March 9, 2021, Ikuta released "Answer" for Tokio Marine & Nichido Life Insurance's Anshin Disability Insurance advertisement. She covered
Seiko Matsuda's "Sweet Memories" for
Takashi Matsumoto's 50th-anniversary tribute album ''
. Ikuta re-released "Romance no Yakusoku", originally from her EP Jukebox
, on August 14, accompanied love reality series . She voiced Hiro-chan in the 2021 animated science fantasy film Belle''. Additionally in 2021, Ikuta featured on
Fujifabric's "Tarinai Sukunai" from their eleventh studio album '''',
Tomorrow X Together's Japanese version of "0X1=Lovesong (I Know I Love You)" from the group's first Japanese EP
Chaotic Wonderland, and
Rei's "Hōseki", and collaborated with
Milet and
Aimer for
The First Take "
Omokage" to advertise
Sony's wireless
noise-cancelling headphones. The trio performed "Omokage" at the
73rd NHK Kōhaku Uta Gassen on December 31, 2022. Ikuta's "Sparkle" was released on January 17, 2022, as a theme for the TV program
Kyō, Suki ni Narimashita: Mikan-hen and
Sotsugyō-hen 2022. She collaborated with hip-hop duo
Creepy Nuts and
Ayase for the single "
Baka Majime", released on March 20. It accompanied the
All Night Nippon 55th-anniversary stage
Ano Yoru o Oboe Teru. The single "Lens", a theme for the
TBS drama '''', was released on June 14. Ikuta featured on
Tokyo Ska Paradise Orchestra's single "Free Free Free", released on July 27. She was in charge of
Fuji TV's
2022 FIFA World Cup's theme "Jump", released on November 20. In January 2023, Ikuta released "Tanpopo" for
NHK's Drama 10
Ōoku, which preceded her debut studio album
Sketch, issued on March 8. The album debuted at number four on the
Oricon Albums Chart, and number two on the
Billboard Japan Hot Albums.
2023–present: Laugh Ikuta features on
Chiaki Satō's single "Senkō Hanabi" from her third studio album
Butterfly Effect (2023), released on June 14, 2023. She released the singles "P.S." for the film
1 Byō Saki no Kare on July 7, and "With" on October 6, inspired by the 2023 film
Analog. In 2024, Ikuta voiced the main character Kadode Koyama in the two-part
anime film ''
Dead Dead Demon's Dededede Destruction'', and performed songs for the film—"Zezezezettai Seiiki" (
Ano featuring Ikuta), and "Seishun Ōka" (Ikuta featuring Ano). The latter was released on March 20. She participated in
Ikimonogakari's compilation album
Ikimonogakari Meets, covering the song "Nostalgia", and
Ikusaburo Yamazaki's album
The Handsome on "Like, Kasaneteiku". Ikuta released "Humming" on June 1, 2024, which was used as a theme for the morning show
Mezamashi Saturday, starting on April 6. Her song "Sign" is used as a theme for horror web series
Tōmei na Watashi-tachi, which was available on September 16. Ikuta performed "Shinsekai yori" with Ano for the anime series version of ''Dead Dead Demon's Dededede Destruction
. In 2025, Ikuta performed "Hyakka Ryōran", an opening theme for the second season of The Apothecary Diaries, "Nameless Faces" for video game Honkai: Star Rail in both English and Japanese, "Koikaze", a theme for Kyō, Suki ni Narimashita: New Zealand-hen
, "Here, Tomorrow" with Kevin Penkin for MOBA game League of Legends, "Actor", an ending theme for the third season of Spy × Family'', and "Voyage", a theme for high school dance competition Love Dance 2026. Ikuta released her second studio album, titled
Laugh, digitally on December 10, 2025, and physically on January 14, 2026. To promote the album, she will embark on a concert tour in May. She sang a song for South Korean television series
Surely Tomorrow, titled "Caffe Latte", and collaborated with South Korean rapper
Zico for "
Duet". The singer performed as a soloist for the first time at the
76th NHK Kōhaku Uta Gassen with "Koikaze". In 2026, Ikuta released the fourth song accompanying
Kyō, Suki ni Narimashita, titled "Puzzle", for
Daegu Edition. and performed "Stay with Me" for an anime adaptation of fictional character
Rilakkuma by
Production I.G, which she also provides the narration. Ikuta collaborated with composer
Joe Hisaishi on creating and performing the theme song for video game
Professor Layton and the New World of Steam. == Endorsements ==