Collision Course is a collaborative rap rock CD/DVD set from American rapper Jay-Z and nu metal band Linkin Park, released on November 30, 2004 by Roc-A-Fella, Machine Shop, Warner Bros. and Def Jam records. Before the album, Jay-Z had released collaborations with The Roots and R. Kelly, and Linkin Park had collaborated with various artists on their remix album Reanimation. The album was inspired by The Grey Album by Danger Mouse, which was a mash-up album between Jay-Z and The Beatles. MTV had originally planned on mashing up only one or two songs, but the project was eventually expanded to a six song EP. The album was mostly produced by Mike Shinoda and Jay-Z, and was recorded between July 16 and July 19.