Van Halen released “Why Can’t This Be Love” today in 1986. It featured their new vocalist at the time, Sammy Hagar. The song went on to #3 on the top 100 and their LP 5150 went on to the number 1 spot.
Sammy Hagar was one of those unique situations were a solo artist went on to join a band. Typically we see band members starting solo projects instead.