VIDEO : Ellen DeGeneres And Heidi Klum Perform As Sia And Maddie Ziegler For Halloween

Ellen DeGeneres decided to dress up as Sia for her talk show's Halloween episode. DeGeneres then introduced Heidi Klum, dressed as dancer Maddie Ziegler. "I love you for doing this," she said. Klum had no qualms about wearing a nude leotard, as Ziegler does when she dances with Sia. "Not too many people could pull that off, but you look fantastic. "It seems weird that we would be like this and we wouldn't perform, so we should probably perform right now," she said.