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.
EW can exclusively report that Bieber will appear on the show’s first night, Friday, Oct. 19. The special began shooting while Bieber was in Los Angeles for his Believe Tour. The 18-year-old pop star rode in on a Segway, asking the finalists to show off their dance moves for him. Check out an exclusive photo of the moment below. READ FULL STORY »

