The Grey Album

Got hold of this album earlier and deem it worthy of a mention here. The Grey Album by DJ Danger Mouse mixes vocals from Jay-Z's Black Album with the music from The Beatles' White Album.More info. and a quote from the Illegal Art site:

DJ Danger Mouse's recent Grey Album, which remixes Jay-Z's The Black Album and the Beatles White Album, has been hailed as a innovative hip-hop triumph. Despite that and the fact that only 3,000 copies of the album are in circulation, EMI sent cease and desist letters yesterday to Danger Mouse and the handful of stores that were selling the album, demanding that the album be destroyed.