- The Josh Garrett Band -- The Joyful Orchestra
- The Joykiller -- The Jud Conlon Singers
- The Judas Coven -- The Juleps
- The Jules -- The Jumpoutboys
- The Jumps -- The Junior Panthers
- The Junior Revolution -- The Juvenators
- The Juveniles -- The Kai Winding Trombones
- The Kaiser Singers -- The Kane Gang
- The Kane Triplets -- The Kartoon Krew
- The Kartoons -- The KDV Deviators
- The Keane Brothers -- The Kelly Brothers
- The Kelly Family -- The Kenneth Bager Experience
- The Kenneth Brian Band -- The Kenny Clarke - Francy Boland Big Band