As Ellen DeGeneres points out, the video for Sia's comeback single "Chandelier" - poised to be one of the summer's hit smashes - has already received over 7 million views on YouTube. For a songwriter as respected as her, having worked with the likes of Madonna, Beyonce and several others, it's certainly deserved. The Australian pop star appeared on Ellen's show this morning to perform the song, choosing to do so without facing the audience. Their attention was subsequently focused on 11-year-old dancer Maddie Ziegler (from Dance Moms) who recreated the stunning choreography of "Chandelier" in a setting that is entirely like the original. Watch below. Sia's new album, 1000 Forms of Fear, is out on July 7th.