Nick drake (dunno if you could call hima rock star, still amazin tho)
Syd Barret (surprised no one has really mentioned him)
Bob marley (again not a rock star per se, but still amazin)
Could list loads!
But here's some not on anyone's list yet:
Layne Staley (Alice in Chains)
Andrew Wood (Mother Love Bone)
Ronnie VanZandt, and co. (Lynyrd Skynyrd)
Jeff Porcaro (Toto)
If you don't run, you rust. - Tom Petty
“From each according to his ability, to each according to his need”, a scheme to enslave the able to the unable. - Ayn Rand
Bonn Scott! nobody could scowl like Scott.
Dwayne Allman and his bass player whose name I forget. Great live show in the day.
jerry, lennon, marley, zappa & bradly
My favorite of Oakleys work is the rumbling bass intro on the 1969 studio track Whipping Post.