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 Walt Disney Television via Getty Images Television Network. Alexa PenaVega is partnered with Mark Ballas. (Photo by Craig Sjodin/Walt Disney Television via Getty Images)