Aerosmith frontman Steven Tyler may have retired from touring due to damage to his voice ... but he took the stage and belted ...

Nearly 30 artists performed as part of the FireAid Benefit Concert to raise money for fire ... at home will be matched by LA Clippers owner Steve Ballmer and his wife Connie.

Steven Tyler gave his first onstage performance since a vocal injury led to Aerosmith's retirement from touring last year.