Quaternary is an
EP by the
heavy metal band Mötley Crüe, released in 1994. The EP, which was initially going to be titled Leftovers, was made available as a mail-in offer for purchasers of the self-titled album
Mötley Crüe in a limited quantity of 20,000 copies. The EP features one song from each member of the band ("Planet Boom" - Tommy Lee, "Bittersuite" - Mick Mars, "Father" - Nikki Sixx, and "Friends" - John Corabi), along with the song "Babykills" which is performed by the entire band.
This release has since gone out of print. Songs 1-3 and 7 were reissued on the Supersonic and Demonic Relics compilation in 1999, Songs 1-2 were featured on the Red, White & Crüe compilation in 2005, and all the tracks were made available on Music to Crash Your Car to Vol. 2 boxset compilation in 2004.
"Planet Boom" was later released on the soundtrack for Tommy Lee's then-wife Pamela Anderson's movie Barb Wire, though the song was credited to Tommy Lee only, and the title was changed to "Welcome to Planet Boom". A video was also released for this song around the same time as the movie's release.
Tracks 6-9 are Japanese bonus tracks
