Hamilton has used a wide variety of bass guitars over Aerosmith’s career. He has stated in several interviews that his first bass was a Fender Precision that he borrowed and later bought from a friend. During the early years of Aerosmith and the time after their reformation he often used a Music Man bass, a Fender Precision Bass, a Fender Jazz Bass, or a Gibson Thunderbird. During the „Dude Looks Like A Lady” sequence of Wayne’s World 2, he is seen playing a Gibson Les PaulBass. However, during the making of Just Push Play he called upon a Hofner Violin Bass or a double bass during many of the recording sessions. Recently he has favored a modified ’51 Fender Precision Bass with double pickups instead of one for the recording of Honkin’ On Bobo and the subsequent tours following the album’s creation. It is known that he also uses Parker basses, since he appeared playing this bass in Guitar Hero: Aerosmith, though he was seen playing one at the 2004 concert in Japan. As of June 2009 he was touring with five Sadowsky basses in addition to others.