Alexa and her husband Carlos will be joining Season 21 of Dancing with the Stars!!!

Married couple Alexa and Carlos PenaVega will compete on season 21 of Dancing With the Stars, ET exclusively and officially reveals.

"It's so exciting," Alexa, who is also celebrating her 27th birthday today, gushed to ET's Cameron Mathison. "It's beautiful, it's overwhelming, it's an incredible blessing."

Alexa and Carlos will be the first-ever married couple to compete on the show. Don't miss the season premiere Monday, Sept. 14 at 8 p.m. ET on ABC. (Source 1 & 2)