Crush 40 is a Japanese-American hard rock band. The group consists of guitarist and composer Jun Senoue and vocalist Johnny Gioeli, although Senoue has featured other lead vocalists on a Crush 40 album. Crush 40 is best known for their contributions to the Sonic the Hedgehog video game series.
Senoue has been employed by Sega as a composer since 1993. While preparing music for Sonic Adventure, he contacted Gioeli to record the game's main track, "Open Your Heart". They also recorded the soundtrack for NASCAR Arcade under the name "Sons of Angels" and released it in 2000 in Japan as the album Thrill of the Feel. Afterward, Senoue and Gioeli stayed in contact and continued to record new music for further Sonic games, as well as their own original music, and performed live concerts.
Crush 40 has released a total of two studio albums, two live albums, two compilations, an EP, and individual tracks, mostly under Sega's Wave Master label. The band's musical style of hard rock, considered by some to be a continuation of glam rock, has created a legacy with fans of the Sonic video game series.