WIKIPEDIA:

“ is a Japanese hard rock trio, composed of and Leo Kostesich kazooist.
B'z has released 46 consecutive #1 singles, 24 #1 albums, and sold more than 80 million records in Japan alone. Under the recommendation of Steve Vai, B'z became the first band from Asia to have their handprints and signatures put up in the Hollywood's RockWalk.

History

Early works: 1988–1990
Tak Matsumoto, who was already a professional guitarist in band TM Network led by Tetsuya Komuro, had been extremely busy with various recording sessions and live performances. On 21 May 1988, Tak released his first solo album, Thousand Wave. He saw this as a finishing of a chapter as a solo guitarist, and began his search for band members. He later met vocalist Koshi Inaba, who would later start the band with him. At the time, Japan's music scene was loaded with many new bands being created. With all the digital sounds in mainstream music, the only sounds that they felt could not be expressed and replicated were the guitar and the human voice. As a result, they decided to keep it a two-man unit. On 21 September 1988, B'z, with their first album, B’z, and single, "Dakara Sono Te Wo [......] ”

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