Gold medal winner Suni Lee and pop star JoJo Siwa will be on the next season of Dancing with the Stars on ABC. The 30th season begins Sept. 20. The remaining cast will be announced Sept. 8. 

Lee and Siwa will appear on Good Morning America Aug. 27.  

Siwa will dance with a same-sex partner, a first for the show. 

Tyra Banks hosts Dancing with the Stars. Len Goodman, Carrie Ann Inaba, Bruno Tonioli and Derek Hough are judges. 

Lee won the gold as all-around women's gymnastics champion at the Tokyo Olympics earlier this summer. Born and raised in Minnesota, she starts at Auburn University this fall. She said she would try not to put too much pressure on herself on Dancing, and just have fun. 

A Dance Moms alum, Siwa is a dancer, singer, TV and film star, and social media standout. She called it "a  huge honor to be on this show." Siwa will also be the first star on the show paired with a professional dancer of the same sex. 

Dancing with the Stars is produced by BBC Studios' Los Angeles production arm. Andrew Llinares and Tyra Banks are executive producers.

Nick Cannon has been tapped to host Lip Sync BattleShorties, Nickelodeon’s spinoff of the Spike TV competition series, the network said Tuesday.

Nick’s 10-episode Lip Sync Battle Shorties will debut in early 2018 and will feature kids lip-syncing pop songs in celebration of their favorite artists. Cannon will host along with social media darling JoJo Siwa, who will serve as Cannon’s “sidekick,” Nickelodeon said.

Nickelodeon premiered an hour-long Lip Sync Battle Shorties special in December 2016, which posted double- and triple-digit gains with kids and drew more than 2 million total viewers (Live+7), according to Nickelodeon. 

“With Nick Cannon at the helm, every episode of Lip Sync Battle Shorties will be an over-the-top Nickelodeon event, with real kids in the driver’s seat, battling head-to-head in the ultimate competition show,” said Bronwen O’Keefe, senior vice president, Nickelodeon Live Action and Movies, in a statement.