Disney Channel is gearing up to air the newest edition of its dance competition, Make Your Mark: Shake It Up Dance Off, and this year the two-night special will feature appearances from some celebs sure to induce screams out of the young contestants: Justin Bieber and Olympic gymnast Gabby Douglas.


Douglas, who earned two gold medals in London this summer, will appear during the Oct. 19 episode in a taped message to give a shout-out of encouragement to the contestants.

EW can also announce that Disney Channel stars Debby Ryan (Jessie) and Roshon Fegan (Shake It Up) will return as hosts. Ryan and Fegan also hosted the competition last year, when it was called Make Your Mark: Ultimate Dance Off — ‘Shake It Up’ Edition.

Fegan says that he is eager to host the show again because “I love interacting with fans, so to be up there and direct the flow of the whole show and have fun with them, there’s no feeling like it.” He also told EW of his co-host, “Debby Ryan’s great. She’s crazy. She has a lot of energy.”

The competition show, which puts eight- to 16-year-olds’ dance moves to the test, kicks off on Oct. 19 and wraps up on Sunday, Oct. 21. Both episodes will air at 8 p.m. on Disney Channel. The finalists announced last month made their way to the on-air competition by submitting short dance videos online. The winner earns the opportunity to be on an episode of Disney Channel sitcom Shake It Up and will ultimately be determined by viewer votes.

Cher Lloyd, who gained fame on the English version of The X Factor, and choreographer Rosero McCoy are set to judge the competition.

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