Chirolyn (born Watanabe Hiroshi on October 14, 1965) is a Japanese musician (bass, vocals, guitar) whose music can't be specifically defined by one genre. His sound is that of rock, pop, and even tracks influenced by 1950s American music.

Chirolyn was recruited into hide (Matsumoto Hideto)'s solo support band as bassist in 1994. Nothing is really known about HIROSHI, the band Chirolyn was part of before hide discovered him.

Although known mostly for his time in hide with Spread Beaver, Chirolyn has also released albums solo; as part of his band, Chirolyn & The Angels; and Madbeavers.

Chirolyn has done a lot of work as a session bassist (live and in the studio) for many other Japanese artists, including machine, GACKT, Inoran, Hotei Tomoyasu and Miyavi. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.