Wow where do you start? Theres too many songs so i'll just list the best bands. Im not big into rap so im going to exclude that.

Eric Clapton
Jimi Hendrix
Marley
Peter Tosh
Sublime
Rusted Root
The Doors
Tom Petty
Red Hot Chili Peppers
Doobie Brothers
CCR
Pink Floyd
Phish
Trey Anastasio
James Taylor
Neil Young
Incubus

Those are some of my favorites....... i know im forgetting plenty, but its a solid beginning.