Sam Roy "Sammy" Hagar (born October 13, 1947), also known as The Red Rocker, is an American rock singer, guitarist, and songwriter.
Hagar came to prominence in the 1970s with the hard rock band Montrose. He afterwards launched a successful solo career, scoring an enduring hit in 1984 with "I Can't Drive 55." From 1985-1996, and 2003–2005, Hagar was the singer for Van Halen. On March 12, 2007, Hagar was inducted into the Rock and Roll Hall of Fame as a member of Van Halen. He has had the opportunity to work with some of hard rock's most famous guitarists including Eddie Van Halen, Ronnie Montrose, Neal Schon of Journey, and more recently, Joe Satriani.
Outside of music, he is also well-known as the founder of the Cabo Wabo Tequila brand and restaurant chain. He currently resides in Mill Valley, California, and also has a residence in Cabo San Lucas, Mexico. His present musical project is as lead singer of Chickenfoot.