Twelve new stars will perform for the first time with their pro-dancer partners.
The new cast includes: Mike Sorrentino "The Situation," Audrina Patridge, David Hasselhoff, Bristol Palin, Brandy, Jennifer Grey, Rick Fox, Florence Henderson, Margaret Cho, Kurt Warner, Michael Bolton and Kyle Massey.
The first celebrity will be voted off Tuesday night.
Santana and Daughtry will perform on the elimination episode.
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