Sheldon Gershon "Shelly" Yakus (born November 1945) is an American music engineer and mixer. Formerly chief engineer and vice president of A&M Records, he was nominated for induction into the Rock and Roll Hall of Fame in 1999. Yakus is referenced at the end of one of Tom Petty's songs "What're You Doin' In My Life?" As of 2014, Yakus was chief engineer of AfterMaster Audio Labs and Recording Studios, a recording firm he co-founded with Larry Ryckman, who is its CEO. Yakus is also vice president of Studio One Media, Inc.