| The Alan Parsons Project |
| The Alan Parsons Symphonic Project |
| The Alan Price Rhythm & Blues Combo |
| The Alarm |
| The Alarm Clocks |
| The Albion Band |
| The Albion Dance Band |
| The Album Leaf |
| The Alchemist |
| The Alchemist |
| The Aldwych Players |
| The Aleem Brothers |
| The Alex French Revolution |
| The Alex George Experience |
| The Alex Levin Trio |
| The Alex Yangs |
| The Alexander Brothers |
| The Alexandra Choir |
| The Alexandrov Red Army Choir |
| The Alfa |
| THE ALFEE |
| The Alfresco Flavour |
| The Alien |
| The Aliens |
| The Alif |
| The Alignment |
| The Alive Collective |
| The Alkyli Project |
| The All American Band |
| The All American Boys Chorus |
| The All-American Rejects |
| The All American Rejects |
| The All Goods |
| The All Seeing I |
| The All Star Big Band |
| The All Stars |
| The All Stars and Jimmy Page |
| The All Stars Stompers |
| The Allah |
| The Allen Farnham Quartet |
| The Allen Lewitt Project |
| The Allender Band |
| The Allergies |
| The$alles |
| The Alley Cats |
| The Alley Kats |
| The Alleycats |
| The Alleys |
| The Allies |
| The Alligators |
| The Allisons |
| The Allman Brothers |
| The Allman Brothers Band |
| The Allstars Collective |
| The Allure |
| The Ally Dogs |
| The Almanac Singers |
| The Almas |
| The Almighty |
| The Almighty GloryUs |
| The Almighty Rhombus |
| The Almighty RSO |
| The Almighty Terribles |
| The Almost |
| The Aloha Steamtrain |
| The Alohas |
| The Aloof |
| The Aloom Project |
| The Alpha Bet |
| The Alpha Conspiracy |
| The Alphabet Girls |
| The Alphabet Zero |
| The Alphas |
| The Alpine |
| The Alpines |
| The Alshire Singers |
| The Also |
| The Alta California Orchestra |
| The Altars |
| The Alter Boys |
| The Altered |
| The Alterior |
| The Alternate Routes |
| The Alternating Currents |
| The Alternative Facts |
| The Altitude |
| The Altogether |
| The Altruist |
| The Aluminum Group |
| The Amatucci Quintet |
| The Amazing Rhythm Aces |
| The Amazons |
| The Ambassador |
| The Ambassadors |
| The Amber |
| The Ambient Light |
| The Ambition |
| The Ambition Company |
| The Ambitious Orchestra |
| The Amblers |
