Thaddis "Kuk" Harrell is an American songwriter, vocal producer, arranger and engineer. He was a member of a songwriting–production team composed of himself, Christopher "Tricky" Stewart and Terius "The Dream" Nash. In 2011, Kuk Harrell and partner Tricky Stewart joined the ranks of Fox's American Idol along with music mogul Jimmy Iovine, producing many of the songs performed on television by the contestants and released via iTunes.