Alphabetical index of artists
-
The O'Jays
- United States
- 1958-present
-
O.C.
- United States
- 1990-present
-
Oasis
- United Kingdom
- 1991-2009
-
Obie Trice
- United States
- 2000-present
-
Obituary
- United States
- 1984-1997, 2003-present