Get ready for some serious Mirror Ball competition! "Dancing with the Stars" cohosts Tom Bergeron and Erin Andrews stopped by "Good Morning America" on Thursday, Sept. 4 and revealed the Season 19 celebrity cast members.

This year a YouTube sensation, fashion designer and "Mean Girls" star will be some of the contestants lacing up their dancing shoes for a shot at winning the coveted Mirror Ball trophy. Check out the full cast below:

Anthony Sabato Jr. ("General Hospital") and  Cheryl Burke
Alfonso Ribeiro (Fresh Prince of Bel-Air") and Witney Carson
Bethany Mota (YouTube star) and Derek Hough
Betsey Johnson (fashion designer) and Tony Dovolani
Janel Parrish ("Pretty Little Liars") and Val Chmerkovskiy
Jonathan Bennett ("Mean Girls") and Allison Holker
Lea Thompson ("Back to the Future") and Artem Chigvinstev
Lolo Jones (Olympian) and Keo Motsepe
Michael Waltrip (NASCAR champion) and Emma Slater
Randy Couture (MMA champion) and Karina Smirnoff
Sadie Robertson ("Duck Dynasty") and Mark Ballas
Tavis Smiley (talk show host) and Sharna Burgess
Tommy Chong (Cheech and Chong) and Peta Murgatroyd

It was already revealed that former pro dancer Julianne Hough will return to the ballroom as a judge, alongside veteran judges Carrie Ann Inaba, Len Goodman and Bruno Tonioli.

"I am warming up the paddles and the sass, and I'm ready to have fun in this new role," Hough told E! News about her return.

Hough, who is known for her honest critiques of dancers, said that she thinks for Season 19 she will be a mix of playful Bruno Tonioli and serious Len Goodman.

"I think I'm a Luno," she jokingly told E!. "Because I have a little bit of encouragement like Bruno does [in his critiques], but I also have some honesty and pinpoints, too."  

Not returning to the dance floor this season is Maksim Chmerkovskiy, who won the Mirror Ball last season with his partner Meryl Davis.

Season 19 of "Dancing With the Stars" premieres Sept. 15 on ABC.

What do you think of the Season 19 cast?