"The Hunting Party" was produced by Mike Shinoda and Brad Delson. Who was the only other producer for Linkin Park's albums?
Until It's Gone (Linkin Park song):  The song was originally recorded by the band for their sixth studio album, "The Hunting Party", where it appears as the seventh track on the album. Until It's Gone (Linkin Park song):  Produced by Mike Shinoda and Brad Delson, the track also appears on the single of the same name, which was released by Warner Bros. The Hunting Party (album):  It is the first album since "Meteora" (2003) not to be produced with Rick Rubin, after producing the band's previous three studio albums.
Rick Rubin