1,232 Pages



Years Active






Associated Acts




Former Members

First Summer Uika
Hirano Nozomi
Momose Momo
Pour Lui
Yasui Yuuhi

BILLIE IDLE®︎ was a Japanese idol group active from 2014 to 2019. The group was initially formed by ex-BiS members First Summer Uika and Hirano Nozomi, with their gimmick being "NOT IDOLS". In their final years of activity, they were also joined by BiS' founder, Pour Lui.

Promoting Soshite, Mata..

Promoting NOT IDOL

They were produced by WACK until 2018, but not actually managed by the company (instead being managed by NIGO). As a result, they were not usually included in official WACK promotions and activities, and were generally considered separate from WACK.

Promoting BILLIed IDLE 2.0

Promoting LAST ALBUM

Promoting Bi bi bi bi bi


Final Lineup[edit | edit source]

Past Members[edit | edit source]

  • Yasui Yuuhi (Joined January 14th, 2015, withdrew August 25th, 2016)

History[edit | edit source]

2014-2015[edit | edit source]

In 2014, during BiS' disbandment concert at Yokohama Arena, First Summer Uika and Hirano Nozomi announced their plans to form a new group and would hold auditions for members.

In January 2015, Momose Momo and Yasui Yuuhi were announced as members and BILLIE IDLE®︎. On January 1st, the began recording the radio show, IDLE TALK, on HOMETOWN HI-FI.

Their debut live, BILLIE IDLE LAUNCH SHOW, was held on January 11th at Shibuya's Clubasia.

BILLIE IDLE®︎'s first digital single, Anarchy in the music scene, was released on March 2nd, with their debut album, IDLE GOSSIP following on April 1st alongside a second digital single, Be my boy.

BILLIE IDLE®︎ held their first oneman live, "IDLE GOSSIP SHOW (NOT IDOL, NOT KAWAII)" at Laforet Museum Harajuku on April 4th.

On September 9th, they released their second album ROCK "N" ROLL IDLE alongside another digital single, be-bop tu-tu.

On December 12th, BILLIE IDLE®︎ hosted a BiS reunion show, "BILLIE IDLE® presents Brand-new Idle Society". Performing alongside BILLIE IDLE®︎ were the active projects of the other members of BiS' first-generation line-up; LUI FRONTiC Akabane JAPAN (Pour Lui), Maison book girl (Koshouji Megumi), POP (Kamiya Saki) and Tentenko as a soloist.

2016[edit | edit source]

From February 20th to April 29th, the Brand-new Idle Society performance became a nationwide tour.

On April 6th, BILLIE IDLE®︎ released the EP "4 in 1" THE OFFICIAL BOOTLEG. Each track was a solo song for each of the members, with the exception of Hirano Nozomi whose song featured First Summer Uika and other former members of BiS on guest vocals.

On July 13th, Yasui Yuuhi went on indefinite hiatus for an unspecified health problem. Her withdrawal was later announced on August 25th, and her replacement, Momose Momo's younger sister, Akira, was announced the same day.

BILLIE IDLE®︎'s third studio album, bi bi bi bi bi, was released October 26th with the digital single Nakisou Sunday.

2017[edit | edit source]

On April 26th 2017, BILLIE IDLE®︎ released two albums at once; a live album, LAUNCHING OUT, and BILLIed IDLE, a best-of album with songs updated with Akira's vocals. BILLIE IDLE®︎ released their first CD single MY WAY in August 2017.

In the Fall, members First Summer Uika and Momose Momo provided guest vocals on the N.E.R.D song "Secret Life Of Tigers".

On November 1st, BILLIE IDLE®︎ released the digital single Sayonara Romantic.

BILLIE IDLE®︎'s fourth album, LAST ALBUM, was released on November 22nd. While promoting the release of this album, their producer Watanabe Junnosuke claimed that there would be "major changes" to the group in 2018.

2018-2019[edit | edit source]

BILLIE IDLE®︎ released P.S.R.I.P. on March 21st, which was revealed to be their final single to be produced by WACK.

On April 1st, BILLIE IDLE®︎ released an "April Fools" video teasing a new member, which was deleted the following day. However, on May 12th, former BiS founder and leader Pour Lui made a surprise appearance during the encore of BILLIE IDLE®︎'s P.S.R.I.P Tour finale where it was announced that she had joined BILLIE IDLE®︎. Pour Lui's first show was their June 6th one-man at Akasaka BLITZ.

On July 4th, BILLIE IDLE®︎'s second best-of album, BILLIed IDLE 2.0 would be released July 4th. Like the previous BILLIed IDLE album, all the songs were re-recorded to include Pour Lui's vocals. This was followed by their first original album with Pour Lui (and what would be their final album), NOT IDOL, on November 7th. A song from the album, Bye Bye Loneliness, was later released as a single on December 19th.

On January 23rd, they released their third single, Soshite, Mata.. digitally. It received a general release on February 2nd, and spawned the temporary BILLIE IDLE®︎ rival group, BULLY IDOL.

Their second release of 2019 was the single Bokura Mada Chippoke na Koro no Hanashi, followed by their final single, LAST ORGY in October.

On October 16th, 2019, BILLIE IDLE®︎ announced that they would disband at the end of December. One of the main reasons given by producer NIGO was that the group was not profitable enough. BILLIE IDLE®︎ disbanded at the finale of their LAST ORGY tour on December 28th, 2019.

Discography[edit | edit source]

Events[edit | edit source]

See BILLIE IDLE®︎ Live Events

Radio[edit | edit source]

  • [2015.01.01 - 2019.11.21] IDLE TALK (HOMETOWN HI-FI)

Trivia[edit | edit source]

  • Although they are not an official WACK unit, they were listed on WACK's official website, and was produced by Watanabe until early 2018.
  • As of 2018, a majority of the group consists of former BiS members.
  • When asked about their "NOT IDOL" theming, their explanation was that although they perform like idols, they do un-idol like things.
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