On Tuesday, Whitney Houston hit stores with a collection of unreleased dance mixes, the first of several releases due from the diva this year.

Whitney: The Unreleased Mixes" is a limited edition box set of 12" singles featuring eight unreleased dance mixes. The four-record set includes a David Morales mix of "So Emotional" and a reworking of "How Will I Know" by Junior Vasquez.

As we previously reported, "Whitney - The Greatest Hits" will hit stores on May 16 (see [article id="1430160"]"Whitney Recruits Enrique, Q-Tip For Greatest Hits"[/article]). The two-CD, 36-song collection will feature four newly recorded tracks, including duets with George Michael, Enrique Inglesias, Deborah Cox, and a new song that was co-produced by Q-Tip and Raphael Saadiq.

DVD and VHS versions of "Whitney - The Greatest Hits" will also be released, with additional footage, interviews, and more.