Under17
| Company type | Musical duo |
|---|---|
| Industry | Music |
| Founded | 2001 |
| Founder | Haruko Momoi, Masaya Koike |
| Defunct | 2004-09-27 |
| Headquarters | Japan |
| Products | Moe songs, anime theme and insert songs |
Under17 (commonly styled as UNDER17) was a Japanese musical pair established in 2001 by Haruko Momoi and Masaya Koike. The duo focused on creating "moe songs," contributing theme and insert tracks for various anime titles including Tenbatsu! Angel Rabbie, Popotan, and DearS.
History
Under17's compositions were featured in anime series such as Mouse, Popotan, Tenbatsu! Angel Rabbie, Hourglass of Summer, DearS, and Kujibiki Unbalance. Additionally, they crafted opening themes for multiple adult video games. On 27 September 2004, the pair declared their disbandment after completing a nationwide tour, attributing the split to creative disagreements. Their concluding live performance occurred on 20 November 2004 at Yokohama Blitz. Following the separation, Momoi embarked on a solo career, while Koike went on to establish the moe-pop group MOSAIC.WAV.
The duo briefly reunited on 31 August 2008 at the Animelo Summer Live, where they performed "Tenbatsu! Angel Rabbie" alongside members of MOSAIC.WAV.
In March 2020, Momoi and Koike reunited once more to appear at Susume Moe Denpa Shōnen!! Daifukkatsusai 2020!!: Sugisarishi Moe o Motomete.
Members
- (vocals)
- (guitar)
Compilation albums
| Title | Year | Details | Peak chart positions | Sales |
|---|---|---|---|---|
| JPN | ||||
| Under17 Best Album 1: Bishōjo Game Song ni Ai o! (UNDER17 BEST ALBUM1 美少女ゲームソングに愛を!) | 2003 |
|
93 | — |
| Under17 Best Album 2: Moe Song o Kiwameruzo! (UNDER17 BEST ALBUM2 萌えソングをきわめるゾ!) | 2004 |
|
50 | — |
| Under17 Best Album 3: Soshite Densetsu e... (UNDER17 BEST ALBUM3 そして伝説へ…) |
|
55 | — | |
| "—" indicates releases that did not chart or were unavailable in that market. | ||||
Singles
| Title | Year | Peak position | Sales |
|---|---|---|---|
| JPN | |||
| "Mouse Chu Mouse" (マウス Chu マウス) | 2003 | 68 | — |
| "Popotan E.P." (ぽぽたんe.p.) (with Funta) |
— | — | |
| "Love Slave" (ラブスレイブ) | 2004 | 55 | — |
| "Kujibiki Unbalance" (くじびきアンバランス) | 68 | — | |
| "—" indicates releases that did not chart or were unavailable in that market. | |||