Marvin Andrew Sturmer (born March 11, 1965) is an American musician, singer, songwriter, and composer who co-founded the rock band Jellyfish in 1989. He was the group's lead vocalist, drummer, and primary songwriter. Following their break-up in 1994, Sturmer became involved, with Tamio Okuda, as writer and producer for the Japanese pop duo Puffy AmiYumi. Although Sturmer maintains a low public profile, he continues working as a songwriter for cartoons produced by Disney and Cartoon Network.