Channeling Sia's favorite dancer Maddie Ziegler, the Dancing With the Stars star patted his tummy, did some amazing hand motions and some even more impressive jumps. He even got a lift from his female backup dancers. And let's not overlook his very emotional facial expressions. He clearly is feeling this. Julianne certainly loved it "Even if I don't win, he's never going to live this down," she said. "That was the greatest thing I've ever seen."