Kokua members

Gota Yashiki (屋敷 豪太 Yashiki Gōta, 26 February 1962) is a Japanese musician, both an independent acid jazz artist and drum/bass player, as a member of the band Simply Red.

Shikao Suga (スガ シカオ, Suga Shikao, born July 28, 1966) is a Japanese musician and singer-songwriter from Tokyo known for writing the theme songs for several anime, movies and commercial ads. His name in kanji is 菅 止戈男. He uses katakana as his professional name.

Takamune Negishi (根岸孝旨, Negishi Takamune, born September 28, 1961) is a Japanese musician, bassist, producer and composer.

Hirokazu Ogura (小倉博和, Hirokazu Ogura, born January 28, 1960) musician from Takamatsu. His interest in playing the guitar started in High School.

Satoshi Takebe (武部 聡志, Takebe Satoshi, born February 12, 1957) is a Japanese musician keyboard player, arranger, and producer from Tokyo.

Kokua (コクア, stylized as kōkua) is a Japanese musical group formed in 2006 especially to sing "Progress", the title song to the NHK program Professional Shigoto no Ryūgi (プロフェッショナル 仕事の流儀), known overseas as "The Professionals".