Tom Hamilton first started playing guitar when he was 12 and switched to bass when he was 14 to join a local band because they had an open space at that position. Hamilton was in a few bands with soon-to-be Aerosmith guitarist Joe Perry. One of the bands was simply called "The Jam Band". The band broke up and Hamilton and Perry both moved to Boston to start another band and met Steven Tyler at a local club called "The Barn". Tyler's band also broke up and the three joined together. The three became a power trio with Hamilton on bass, Perry on guitar, and Tyler on drums and vocals. Then Ray Tabano joined and eventually Joey Kramer joined in replacing Tyler on drums so he could focus on vocals. Tabano was replaced by Brad Whitford and Aerosmith was born.