Good musicians who would surely quickly implode if put together... but probably deserve each other.
 
How about...
Lead Vocal: Axl Rose or Van Morrison
Drums: Ginger Baker
Guitar: Ritchie Blackmore
2nd guitar: Keef
Keys: <edited> Sir Elton.
Bass: McCartney?
That lineup should last about 5 minutes.  If they could stay together the drama should result in a great album!
 
I was reading about all the people Keef has dissed and remembered how Ginger talks to people... and I was thinking, they deserve each other. Then I started thinking... (bad idea, I know.)
 
J (Ninny)

The Singing, Ringing Tree - vocals & percussion
Sir Prancelot - lute
Les Dawson - keyboards
The Little Drummer Boy - bass
Professor Yaffle - mouse organ
Nogbad the Bad - rapping
 

Where the feck is Jack Brittledick in all this?

Ah, Jack Brittledick & Barrie Barlow. A rhythm section par excellence.

 

Miley and Jessica Simpson weren't invited? 

Mixed and produced (eventually) by Tom Sholz

bitman
Mixed and produced (eventually) by Tom Sholz

This line up may have a confrontation or two....
 
Bruce Dickinson: Vocals
Eddie Van Halen: Guitar
Gene Simmons: Bass
Lars Ulrich: Drums

craigb
Miley and Jessica Simpson weren't invited? 

I don't think those old foggies would know what to do with a nekkid girl! Partially so anyway ... I don't think these guys take to teasing too well!