Missy Elliott cooking up new tunes

NEW YORK (Billboard) - Rap star Missy Elliott has popped up here and there in the past few years (namely, in a Doritos ad campaign), but there hasn't been much in the way of new music from her since 2005's "The Cookbook."

Now the wait is over, in the form of the new songs "Ching-a-Ling" and "Shake Your Pom Pom," which will appear on Atlantic's "Step Up 2 the Streets" soundtrack (February 5) and Elliott's new album (likely due in May).

At No. 57, "Ching-a-Ling" is currently the top debut on Billboard's Hot R&B/Hip-Hop Songs chart.

Elliott is hoping to reunite with producer Timbaland, who has been behind some of her biggest hits but wasn't much of a factor on "The Cookbook."