Sammy Hagar, From Colton, California, was popular in the early- mid 1980's for fast paced, guitar-driven, hard rock with a masculine, lets-go-party attitude, joined the band Van Halen as lead vocalist after David Lee Roth's departure from the group. (Before joining Van Halen he sang lead vocals in Ronnie Montrose's classic rock band Montrose, and had some single output, notably his release, "I Can't Drive 55".) As much as it was public surprise when Hagar joined the band, so it was when he left.
These are videos from concerts where Sammy Hagar played, so they may be of other bands that played the concert as well.
Farm Aid Sep 22, 1985 Champaign, Illinois, United States Added by Concert Archives
Sammy Hagar - Heavy Metal
ROCK SUPER BOWL XVII / Journey / Aerosmith / Sammy Hagar / Bryan Adams Apr 23, 1983 Orlando, Florida, United States Added by Jumping Jack Flash
Sammy Hagar / Night Ranger Mar 13, 1983 St. Louis, Missouri, United States Added by Rushman764