And the truth is finally REVEALED!!!
[Image via Kylie Jenner/Instagram.]
Wow, we could watch Sia perform Chandelier all day long…even if we don't get to see her magical face!
In the vid, Sia sings with her back to the audience as a much older version of the songstress lip-syncs the lyrics on a treadmill.
Yep, that sounds like our girl!
Check out Sia's senior citizen doppelgänger below…AFTER THE JUMP!
Between the musical goodness and magnificent visuals, we're just blown away!
[Image via WENN.]