- A Day To Remember
- A Perfect Circle
- A Primitive Evolution
- A Skylit Drive
- A Step Ahead
- Abandon All Ships
- Abbath
- Abolishment Of Flesh
- Abrasive
- Absolva
- The Acacia Strain
- Accept
- Ace Frehley
- Across The Wall
- Aeones
- Aerosmith
- Affiance
- Afraid Of Destiny
- After The Burial
- Age Of End
- Agnostic Front
- The Agonist
- Airbourne
- Alesana
- Alice In Chains
- All American Rejects
- All Shall Perish
- All That Remains
- Almost Tomorrow
- Alone On The Moon
- Aly & AJ
- American Sugar Bitch
- Amon Amarth
- Amorphis
- An Ocean Between Us
- Analepsy
- Andrew WK
- Angra
- Animals As Leaders
- Another Black Day
- Anthrax
- Anti Flag
- Anti Venom
- Anuryzm
- Arallu
- Arcanium
- Arch Enemy
- Architects
- Archspire
- Arkaea
- Armor Column
- Art Of Dying
- Artificial Disaster
- As I Lay Dying
- Ashes Divide
- Asking Alexandria
- Asmodæn Blood Coven
- Assaulter
- Astralborne
- Athena's Word
- Atlantis Chronicles
- Atreyu
- Attack Attack
- Attick Demons
- Attila
- August Burns Red
- Autopsy
- Avatar
- Avenged Sevenfold
- Avulsed
- Awakening Sun
- Axial Symmetry