Gregg Michael Gillis, known by the stage name Girl Talk, is an American disc jockey who specializes in mash-ups and digital sampling. Gillis has released five LPs on the record label Illegal Art and EPs on both 333 and 12 Apostles. He was trained as an engineer.

RiP!: A Remix Manifesto is a 2008 open-source documentary film about "the changing concept of copyright" directed by Brett Gaylor.