Backstreet's back, alright! Singer, songwriter, and actor Nick Carter is best known as a stand-out member of the boy band, Backstreet Boys. We can only hope one of his dances will be to "Quit Playin' Games with My Heart." He's paired with Sharna Burgess.

Alek Skarlatos is an American Hero who, along with his two childhood friends, Spencer Stone and Anthony Sadler, made headlines around the world on August 2015 when they heroically overpowered a man that opened fire on a train from Amsterdam to Paris. He is partnered with Lindsay Arnold.

Well-known celebrity chef Paula Deen, who just this year opened up a new restaurant and published a new cookbook, is taking a break from southern cuisine to try on a pair of dancing shoes. She's partnered with long-time pro, Louis van Amstel.

Alexa PenaVega is best known for her role as Carmen Cortez in four blockbuster Spy Kids films. She is paired with two-time winner, Mark Ballas. Alexa's husband Carlos, is also competing this season!

Actor/singer Carlos PenaVega, whose wife is also competing this season, is best known for his role as Carlos Garcia on the highly successful Nickelodeon musical comedy Big Time Rush. He is paired with Dancing with the Stars Season 19 champion, Witney Carson.