Samuel Roy Hagar (born October 13, 1947 in Monterey, California, USA), better known as Sammy Hagar, is a U.S. rock guitarist, singer, and composer.
After a brief career as a boxer in the footsteps of his father, Sammy became interested in the burgeoning Southern California music scene, fronting his first band, "The Fabulous Castiles". Hagar's first major success, however, came from his work with the group Montrose on their debut and sophomore albums, including the Hagar-penned song " Bad Motor Scooter".