Timbaland and Magooís upcoming album, Indecent Proposal, will feature a previously unreleased duet with Aaliyah and the genre-hopping Loser Beck. The track, entitled "Iím Music," will be released as a single from the album, due out November 20. "I'm gonna put it out as a tribute song ó it's a beautiful song," said the trend-setting producer. "Itís probably the biggest song I ever did." A video of "Iím Music" is also scheduled to accompany the release.