Amigos is the seventh studio album from Santana. It contained a minor U.S. hit single in "Let It Shine" and was the band's first album to hit the top ten on the Billboard charts (it ultimately reached gold record status) since Caravanserai in 1972. In Europe the song "Europa" was released as a single and became a top ten hit in several countries. New vocalist Greg Walker joined the group. It would be the last Santana album to include original bassist David Brown. This album has been mixed and released in stereo and quadraphonic.