B'z is a Japanese rock duo consisting of guitarist, composer and producer Takahiro "Tak" Matsumoto and vocalist and lyricist Koshi Inaba, known for their energetic hard rock tracks and pop rock ballads. B'z is one of the best-selling music artists in the world and the best-selling in their native Japan by certifications, having released 49 consecutive No. 1 singles, 25 No. 1 albums, and 3 No. 1 EPs on the Oricon music charts, and have sold more than 100 million records worldwide.

Takahiro Matsumoto is a Japanese musician, songwriter and record producer. He is best known as the guitarist and main composer of the rock duo B'z, the best-selling music act in their native Japan by certifications. He also has a successful solo career where, in addition to winning several Japan Gold Disc Awards, he won the Grammy Award for Best Pop Instrumental Album for Take Your Pick (2010), which he made in collaboration with Larry Carlton. Matsumoto is only the fifth guitarist in the world to have his own Gibson signature model guitar.