Last we saw Maddie Ziegler dancing to Sia was with Kristen Wiig at the Grammys in February. Since then, she and her eerily beautiful dance moves have been missed. Until now! Sia performed her song “Alive” on Ellen (well, Ellen promises us the lady hiding behind the enormous black dress is Sia, and we always trust Ellen) as Maddie danced along in a matching black dress, doing normal 12-year-old-girl things like sporting a two-toned black-and-white wig and punching through windows. Missed ya, girl!