Doye O'Dell

Jim O'Rourke

Oakley Hall

Conor Oberst

Oblivians

OCS

Of Montreal

OFF!

Oh Sees

Okkervil River

The Okmoniks

The Old 97's

Will Oldham

Olivia Tremor Control

Jill Olson

Omens

One F

Tara Jane ONeil

The Only Ones

Yoko Ono Plastic Ono Band

William Onyeabor

Oog Bogo

Orange Mothers

Orbiting Human Circus

Orbitronik

Orchestre Poly-Rythmo De Cotonou

Orchestre Super Jheevs Des Paillotes

The Original Acoustic Hot Tuna Jorma Kaukonen & Jack Casady

Os Mutantes

Richard Osborn

Osees

Ought

Ouinsou Corneille & Black Santiago

OutKast

Oval

Buck Owens

Christopher Owens

Oxbow

Ozomatli