Parabola by Tool

Parabola is the name of the second single from Tool's album "Lateralus". It was released in 2002 as a promo CD only. On December 20, 2005, the song as well as the music video were released on a DVD single along with the DVD single for "Schism". The DVD also contains an optional "dual" audio commentary on the video by Jello Biafra of Dead Kennedys fame. The dual commentary consists of two separate recordings of Biafra's voice, one playing in each stereo channel. It is the band's highest charting single. .