Mos Def, Common and the Roots have recorded new music for the soundtrack to "Brown Sugar," an upcoming movie set in the hip-hop industry in which all three acts appear.

Def contributes three versions of the film's title track -- one with his and Talib Kweli's group Black Star -- to the album, due September 24.

Queen Latifah and Mos Def have major roles in the film (see [article id="1457126"]"Mos Def Talks Directing, New Musical Direction"[/article]), while Common, the Roots, Method Man, Doug E. Fresh, Slick Rick, Dana Dane and other rappers make cameos.

"Brown Sugar," written by "Carmen: A Hip Hopera" scribe Michael Elliot, chronicles the lives of a music executive, played by Taye Diggs ("The Best Man"), and a music critic, Sanaa Lathan ("Love & Basketball"), who met and became friends the day both discovered hip-hop.

Magic Johnson is the executive producer of the film, which hits theaters October 11.

The soundtrack features Erykah Badu's new single "Love of My Life (An Ode to Hip-Hop)," which features Common and was produced by Raphael Saadiq.

Other highlights include a cover of Cyndi Lauper's "Time After Time" by contemporary jazz singer Cassandra Wilson, Coldcut's remix of Eric. B and Rakim's hip-hop classic "Paid in Full" and Jill Scott's new "Easy Conversation."

"Brown Sugar" soundtrack track list, according to MCA:

• Mos Def - "Brown Sugar (Extra Sweet)"