KOSHI is one of the names used by artist Koshi Yamada. Koshi Yamada (山田晃士, Yamada Koshi) is a Japanese singer and guitarist who performs music that fuses elements of gypsy jazz, cabaret, swing, chanson and occasionally rock. He began as one of the vocalists for the metal band AROUGE. Once AROUGE disbanded, Yamada went solo. In 1997 he formed the group KOSHI au Bourbier, "to express borderless music revue."

Yamada has released albums under various names and collaborations, including:

KOSHI au Bourbier
山田晃士 au Bourbier (Koshi Yamada au Bourbier)
KOSHI
ガレージシャンソンショー (Garage Chanson Show)
山田晃士と泥沼楽団 (Yamada Koshi and Doronuma-Gakudan)
山田晃士&流浪の朝謡 (Yamada Koshi & Rurou no Asautai)

He and Fumihiko Kitsutaka (guitarist for AROUGE, 筋肉少女帯 / King-Show, and X.Y.Z.→A) also collaborated on the album "Never Ending Story" as a part of a group called 橘高文彦＆フレンズ (Fumihiko Kitsutaka & Friends).

Albums:

- 舞踏会
(1994, under the name 山田晃士)

- Monologue Theater
(1997, under the name KOSHI)

- 世紀末キャバレー～opera noir～
(1999, under the name KOSHI au Bourbier)

- 欲望輪舞曲
(2001, under the name 山田晃士 au Bourbier)

- ガレージシャンソンショー
(2003, under the name ガレージシャンソンショー)

- びらん
(2003, under the name 山田晃士と泥沼楽団)

- 実況見分
(2004, under the name 山田晃士と泥沼楽団)

- 狂歌全集
(2005, under the name ガレージシャンソンショー)

- Theatre Solo
(2010, under the name 山田晃士)

- デラシネ・スウィング
(2011. under the name 山田晃士&流浪の朝謡) Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.