Back number

 (バックナンバー), stylized as back number is a Japanese alternative rock trio from Gunma Prefecture formed in 2004. The band signed to Universal Music in 2011 and have currently released five studio albums, one best album, one extended play and eighteen singles.

Members

 * Shimizu Iyori (清水依与吏) - vocals, guitar
 * Kojima Kazuya (小島和也) - bass, backing vocals
 * Kurihara Hisashi (栗原寿) - drums

Studio albums

 * [2010.06.02] Ato no Matsuri (あとのまつり)
 * [2011.10.26] Superstar (スーパースター)
 * [2012.11.21] Blues
 * [2014.03.26] Love Story (ラブストーリー)
 * [2015.12.09] Chandelier (シャンデリア)

Best albums

 * [2016.12.28] Encore (アンコール)

Extended plays

 * [2009.02.18] Nogashita Sakana (逃した魚)

Singles

 * [2011.04.06] Hanabira (はなびら)
 * [2011.06.22] Hanataba (花束)
 * [2011.10.05] Omoidasenaku Naru Sonohi Made (思い出せなくなるその日まで)
 * [2012.03.07] Koi (恋)
 * [2012.05.30] Nichiyoubi (日曜日)
 * [2012.07.18] Watagashi (わたがし)
 * [2012.11.07] Aoi Haru (青い春)
 * [2013.06.26] Takane no Hanakosan (高嶺の花子さん)
 * [2014.02.05] Fish
 * [2014.03.19] Tsunaida te Kara (繋いだ手から)
 * [2015.01.21] Heroine (ヒロイン)
 * [2015.05.27] Sister
 * [2015.08.12] Tegami (手紙)
 * [2015.11.18] Christmas Song (クリスマスソング)
 * [2016.05.25] Boku no Namae o (僕の名前を)
 * [2016.11.16] Happy End (ハッピーエンド)
 * [2017.12.20] Mabataki (瞬き)
 * [2018.08.22] Dai fu Seikai (大不正解)