No order:

Queen (this can be explained in itself)
(i have to admit - even though I dunwanna) Springsteen
David Bowie + Elton John (only because they changed the 'mold')
Foreigner
Guns n Roses + Aerosmith (just because they ROCK!)

5 different lines - stick with it, i like my system!

-

Rolling Stones + The Beatles + AC/DC (as side notes - just because of what they contriubuted to the rock and the roll)

Heh - didnt realize i had 10 until I counted them.. heh... how about that?!