It's hard to say this about a guy like Eddie Van Halen, one of the greatest guitar players who ever lived, but he's really limited to a style and they're locked into it.

Chickenfoot (2008–present)
In 2008 Hagar formed a "supergroup" named "Chickenfoot" with Michael Anthony Red Hot Chili Peppers drummer Chad Smith and guitar virtuoso Joe Satriani. Van Halen (1985–1996)
After parting ways with vocalist David Lee Roth the remaining members of the band Van Halen contacted many potential replacements. I could do that right before I went on stage.

Hagar came to prominence in the 1970s with the hard rock band Montrose. His present musical project is as lead singer of Chickenfoot.