| The Apers |
| The Apes |
| The Apex Predators |
| The Apex Theory |
| The Aphotic |
| The Apocalypse Complex |
| The Apocalypse Race |
| The Apolitical |
| The Apollo |
| The Apollo Project |
| The Apology |
| The Apop |
| The AporiA |
| The Apostates |
| The Apostles |
| The Apostrophe Wrecks |
| The Appalachian Orchestra |
| The Appalachian Pickers |
| The Appalled |
| The Apparitionist |
| The Apparitions |
| The Apple Bros. |
| The Apple & DJay |
| The Applebaum Jazz Piano Duo |
| The Applejacks |
| The Apples |
| The Apples in Stereo |
| The Appleseed Cast |
| The Applicators |
| The Appraised |
| The Appreciation Post |
| The Appropriate Show |
| The April Family |
| The Aprilbird |
| The APX |
| The Aquabats |
| The Aquadolls |
| The Aquamen |
| The Aquarian Earth |
| The Aquarian Initiative |
| The Aquarius |
| The Aquatic Symphony |
| The Aquatones |
| The Ar-Kaics |
| The Arabian Prince |
| The Arachnids |
| The Arbors |
| The Arc Angels |
| The Arc Line |
| The Arc of Light |
| The Arcade Fire |
| The Arcadian Wild |
| The Arcanauts |
| The Arcane Insignia |
| The Arcane Order |
| The Archers Bow |
| The Arches |
| The Archetypes |
| The Archies |
| The Archimedes |
| The Architechs |
| The Architect of Nightmares |
| The Architects |
| The Architek |
| The Architeks |
| The Architekt |
| The Architeq |
| The Archives |
| The Archon Prophecy |
| The Arcs |
| The Arcturians |
| The Ardent South |
| The Ardey Band |
| The Aristocats |
| The Aristokats Orchestra |
| The Arisu |
| The Arizon |
| The Ark |
| The Arkadian |
| The_Arkeytect |
| The Armed |
| The Arriven |
| The Arrogant Sons of Bitches |
| The Arrogant Worms |
| The Arrogants |
| The Arrows |
| The Arson Choir |
| The Art Bears |
| The Art Dealer |
| The Art Ensemble of Chicago |
| The Art Farmer-Benny Golson Jazztet |
| The Art Girl |
| The ART MuZeum |
| The Art Of |
| The Art Of & Cryllic & Dopebot TNT |
| The Art of Expression |
| The Art of Jaysun |
| The Art of Noise |
| The Art of Peaking Too Soon |
| The Art of Rachet |
