- The Barely Works -- The Baritone
- The Baritone -- The Barking Dogs
- The Barley Boys -- The Barn
- The Barn Owl Band -- The Barnkickers
- The Barnshakers -- The Baroque Monthly
- The Baroques -- The Barrel Club
- The Barreleers -- The Barrio Boyzz
- The Barrons -- The Barry Sea Paradox
- The Barry Sisters -- The Barvarian Beesingers
- The Barynya Ensemble -- The Baseball Astrologer
- The Baseball Project -- The Basement Wall
- The Bash Brothers -- The Basie Bunch
- The Basie Wing -- The Bass Challenger
- The Bass Girls -- The Bassies
- The Bassoon Brothers -- The Bastard Suns
- The Bastards -- The Bathing Beauties
- The Bathroom Murders -- The Batteries
- The Batterin' Ram -- The Battlecats
- The Battles -- The Bay Area Mass Choir
- The Bay Area Philharmonic -- The Bayonne Basque Choir
- The Bayonne Basque Choir -- The B.B.C. Big Band
- The BBC Orchestra -- The BC Combo
- The B.C. Harmonizers -- The Beach Boys