Triangle

Triangle (also known as Triangle XYZ) is a band formed by AIP. They debuted on March 7th, 2017.

Members
Current Team A (2019-2020): Momo, Momoko, Kurumi S, Ruru, Nanami.

Team B (2019-2020): Hikaru, Marie, Rena, Ryo, Mei, Ono.

Past

2016-2018
On January 9th, 2016 AIP opened an audition for a new girl group.

On March 1st, 2017 the 1st generation of Triangle was introduced. Rise was named Leader and Kame was named Sub Leader. All members of the 1st generation were also previous trainees under other companies prior to the audition.

On July 3rd, 2018 the 2nd generation was introduced.

September 29th, 2018 7th single was the first single to feature the 2nd generation.

December 1st, 2018 Kurumi S, Marina, and Rena were introduced as the 3rd generation.

2019-2020
March 1st, 2019 9th single was the first single to feature the 3rd generation.

On April 8th, 2019 Ono and Nanami had joined the group as 4th generation members. It was also announced at this time that the group would be working as a whole and in two teams for more promotions starting then. Rise and Kame at this time were both considered leaders. Team A: Rise (Captain), Kana, Momo, Momoko, Kurumi S, Marina, Ruru, Nanami. Team B: Kame (Captain), Kurumi, Hikaru, Rion, Marie, Rena, Ryo, Mei, Ono.

Team A and Team B's first singles were the first to feature Ono and Nanami as members of Triangle.

January 2nd, 2020 Team A 3rd single was the last single to feature Kana.

January 7th, 2020 Team B 3rd single was the last single to feature Kurumi.

April 20th, 2020 Team A 4th single: A Girl Promotion for this single was held via live stream due to the outbreak. Marina's graduation was also held via live stream.This was also the last single to feature Marina.

April 22nd, 2020 Team B 4th single: The Next Dance Promotion for this single was held via live stream due to the outbreak.

On June 17th, 2020 Rise and Kame announced they would be graduating from Triangle and AIP at the start of 2021. At the announcement AIP announced as well that the group would go back to focusing more as a whole rather than two teams following the 5th team singles.

August 17th, 2020 Team B 5th single was the last single to feature Rion.

From August 21st to October 19th 2020 Ruru was on hiatus due to a foot injury.

December 1st, 2020 10th single was the last to feature Rise and Kame.

2021-
On January 2nd, 2021 Rise and Kame graduated from Triangle. Momo was named the groups next leader. Hikaru and Marie were named the sub leaders. This left the group with the members: Momo, Hikaru, Marie, Momoko, Kurumi S, Rena, Ryo, Mei, Ruru, Ono, Nanami. The group announced they would be focusing as one unit now rather than teams as AIP had announced back in June of 2020.

On January 7th, 2021 Momo, Hikaru, and Marie announced the 5th generation auditions for the group. They also announced that the group was working on their first album to be released in June.

June 27th, 2021 the group released their first album. They had updated songs of their 1st-9th singles, 2 new songs, and the A side track-list of the groups 10th single.

On July 1st, 2021 the 5th generation audition winners were announced as Ruu, Nana, Ikumi, and Miki.

On December 6th, 2021 the group released their 11th single. This was the first single to feature the 5th generation.

On January 1st, 2022 Kurumi S announced she would be graduating in the summer of 2022. Following many discussions she felt her time with Triangle was nearing its end. On January 24th her graduation was set for July 7th, 2022.

On March 16th, 2022 Marie announced she would be graduating on December 22nd, 2022.

Singles

 * 1) March 7th, 2017 1st single: My Life Is Not A Show
 * 2) June 11th, 2017 2nd single: Blue Butterfly
 * 3) September 15th, 2017 3rd single: Climb
 * 4) December 19th, 2017 4th single: Untouched Love
 * 5) March 23rd, 2018 5th single: Wait A Moment
 * 6) June 27th, 2018 6th single: Do you Understand
 * 7) September 29th, 2018 7th single: Pretty Girl
 * 8) December 30th, 2018 8th single: Feels Like Not A Day Has Passed 
 * 9) March 1st, 2019 9th single: The Ability To Go On 
 * 10) December 1st, 2020 10th single: Away With Wind; Self-Aware; Love Circle. 
 * 11) December 6th, 2021 11th single: Peach; How Do You Like That; Disco
 * 12) April 7th, 2022 12th single: Plastic; SLOUTION

As Team A and Team B

 * 1) July 6th, 2019 Team A 1st single: Blooming Wind 
 * 2) July 13th, 2019 Team B 1st single: Our Own Way
 * 3) October 12th, 2019 Team A 2nd single: Good Days
 * 4) October 17th, 2019 Team B 2nd single: You!
 * 5) January 2nd, 2020 Team A 3rd single: I Know You~
 * 6) January 7th, 2020 Team B 3rd single: Into the Future
 * 7) April 20th, 2020 Team A 4th single: A Girl
 * 8) April 22nd, 2020 Team B 4th single: The Next Dance
 * 9) August 10th, 2020 Team A 5th single: Cuddles 
 * 10) August 17th, 2020 Team B 5th single: Hold Me Close

Albums

 * 1) June 27th, 2021 1st Album: Kataomoi Original; Eien; My Life Is Not A Show (Updated); Blue Butterfly (Updated); Climb (Updated); Untouched Love (Updated); Wait A Moment (Updated); Do you Understand (Updated); Pretty Girl (Updated); Feels Like Not A Day Has Passed (Updated); The Ability To Go On (Updated); Away With Wind (10th single VER.); Self-Aware (10th single VER.); Love Circle (10th single VER.).