Even if you can see life with the willfully flamboyant David Lee Roth getting tiring, certainly Van Halen would be able to get along with his replacement, the affable, hard-working Sammy Hagar, right?

Well, for about a decade, really well, yeah. But in 1996, Hagar quit or was fired after a series of arguments over movie soundtrack songs, greatest hits albums and most divisively, a secret reunion with Roth.

After that reunion and a stint with Extreme frontman Gary Cherone flamed out, Van Halen brought Hagar back into the fold for a 2004 tour that imploded even more spectacularly. Bassist Michael Anthony jumped ship to form Chickenfoot with Hagar, who gleefully lobs verbal grenades at his old bandmates quite regularly.