'20 Years Old' is due Sept. 26.

Janet Jackson is turning over the artwork for her upcoming album, "20 Years Old," to fans via a contest with Yahoo! Music. Beginning today (July 18) at noon PST, fans can download 33 images of Jackson for use as part of their own covers. Jackson will personally choose four finalists, whose creations will appear on "selected publicly distributed copies" of the album, according to Virgin.

Sixteen finalists will win Jackson's complete album discography on CD. Each design uploaded to the contest site will be assigned a unique link that can be shared.

Jackson's "20 Years Old" is due Sept. 26. The set was produced by the artist's boyfriend, Virgin Urban president Jermaine Dupri, as well as longtime collaborators Jimmy Jam & Terry Lewis.

The single "Call on Me" is No. 16 in its fourth week on Billboard's Hot R&B/Hip-Hop Songs chart.