Watch Sia Perform ‘Alive’ on ‘Ellen’ — But Does She Take Off Her Wig? Sia has become even more famous in her attempts to do the very opposite. The pop singer began wearing elaborate ...

Sia reunited with teenage dancer Maddie Ziegler for a performance of new single ‘Alive’ on Ellen yesterday. Ziegler has starred in the majority of Sia’s recent videos, including 2014 hit ...

But, thankfully, the fruitful collaboration between the two is not done quite yet: On The Ellen Show earlier today, Ziegler returned to dance along to “Alive.” ...

Sia also performed on the show, singing hit “Alive,” accompanied by frequent collaborator Maddie Ziegler.

It was a collaboration with Sia on the 'Chandelier' and 'Elastic Heart' videos that made Ziegler a star, so the stakes were high when they dropped by The Ellen DeGeneres Show.

It looked like Sia had moved on from Maddie Ziegler, the very talented young dancer who appeared so much in the pop singer's previous album cycle -- she used a different little girl in the "Alive ...

As she sang the track on Ellen, Sia was concealed in a large, semi-triangular outfit. She also hit The Voice to promote the tune; on that show, she obscured her face with a massive bow tie.

Ellen DeGeneres celebrated Halloween on her Monday broadcast by dressing like Sia and recreating the “Chandelier” video with help from Heidi Klum. The Ellen DeGeneres Show host dressed as Sia ...

Sia Performance Ellen DeGeneres Show - H 2015 Michael Rozman/Warner Bros.