Holy shit, Dave Grohl.

I'm sitting here watching "Foo Fighters: Back and Forth" and just learned that Dave Grohl turned down an opportunity to play drums for Tom Petty.

Because he had this dream of starting Foo Fighters (this was after he had recorded the demo that was all him on all the instruments - but before there was actually a band) and being the lead singer/guitar player, which was something he had never done before.

Turned him down.  Tom Fucking Petty.

Dave Grohl is officially the biggest bad ass in rock music.