In 1988, guitarist Tak Matsumoto and vocalist Koshi Inaba formed the rock duo B’z. Over the next 24 years, B’z released 18 albums and 50 singles, 46 of which debuted at No. 1 on Japan’s Oricon singles chart. B’z have sold more than 80 million CDs in Japan alone, making them the best-selling artists in that country's history.