Dancing with the Stars 2015 Spoilers: Meet The Season 21 Cast (PHOTOS) » ALEXA PENAVEGA, MARK BALLAS

DANCING WITH THE STARS – ALEXA PENAVEGA & MARK BALLAS – The celebrity cast of “Dancing with the Stars” is lacing up their ballroom shoes and getting ready for their first dance on MONDAY, SEPTEMBER 14 (8:00-10:01 p.m., ET) on the ABC Television Network. Alexa PenaVega is partnered with Mark Ballas. (ABC/Craig Sjodin)