"Wax Simulacra" is a single from the album The Bedlam in Goliath by The Mars Volta. The single debuted on November 18, 2007, on San Francisco's Live 105 FM. It was previously played live by the band under the name "Idle Tooth". The B-side "Pulled to Bits" is a cover of a Siouxsie and the Banshees song. On October 19, 2007, a promotional video for the single was released via the Universal Music Group web site. A video for the song features a montage of clips from the unreleased live DVD of Melbourne and Sydney 2007 shows, filmed by El Bufalo De La Noche director, Jorge Aldana.