Dancing With the Stars Season 21 Cast An**unced: Tamar Braxton, Chaka Khan, Alexa Pen
 

Dancing With the Stars Season 21 Cast An**unced: Tamar Braxton, Chaka Khan, Alexa PenaVega Make Official Cut
The Dancing With the Stars Season 21 cast was officially an**unced on Wednesday. Sept. 2 -- plus, find out who their partners are!This article originally appeared on Usmagazine.com: Dancing With the Stars Season 21 Cast An**unced: Tamar Braxton, Chaka Khan, Alexa PenaVega Make Official Cut