Sia Performs 'Elastic Heart' on 'The Voice': Watch!

Sia performs "Elastic Heart" on The Voice on April 7, 2015.
Tyler Golden/NBC

Sia performs "Elastic Heart" on The Voice on April 7, 2015.

Sia once again kept her identity hidden when she took the stage on The Voice on Tuesday (April 7).

The singer was on hand to perform her track "Elastic Heart" on Tuesday's show where she took the stage all by herself-- her face cleverly hidden by her blonde wig as she often does when she takes the stage. Instead of opting for any additional theatrics, Sia, decked out in all black, let her singing shine.

Sia's 'Elastic Heart' Video is a Cage Match Between Maddie Ziegler & Shia LaBeouf 

This is not her first appearance on The Voice. She served as an adviser to coach Christina Aguilera in 2011.

Wiz Khalifa will perform on Wednesday's episode of the show. He'll perform his Furious 7 soundtrack song "See You Again" with past Voice artist Chris Jamison.



The Biz premium subscriber content has moved to

To simplify subscriber access, we have temporarily disabled the password requirement.