Joseph Satriani (born July 15, 1956) is an American guitarist, composer, songwriter, and guitar teacher. Early in his career, Satriani worked as a guitar instructor, with many of his former students achieving fame, including Steve Vai, Larry LaLonde, Rick Hunolt, Kirk Hammett, Andy Timmons, Charlie Hunter, Kevin Cadogan, and Alex Skolnick; he then went on to have a successful solo music career. He is a 15-time Grammy Award nominee and has sold over 10 million albums, making him the bestselling instrumental rock guitarist of all time.