Birthday: March 27th
Tak Matsumoto is from Toyonaka city, Osaka. He started working as a professional guitarist around 20 years old and played on many records and at live shows. He formed B'z with Koshi Inaba in 1988. Tak writes, produces, and of course plays guitar on all the B'z songs.
Birthday: September 23rd
Koshi Inaba is from Okayama prefecture. He graduated Yokohama National University with a license to be a teacher but he decided to follow his will to be a vocalist. He formed B'z with Tak Matsumoto and made his debut in 1988. Koshi is the vocalist of B'z and writes all the lyrics.