Sia claims to have written another great song for Beyoncé

Singer-songwriter Sia revealed details of her collaboration for the highly anticipated new album from Beyoncé.

The Australian singer answered questions on Twitter and when a fan praised her new song, Elastic Heart, for the soundtrack of The Hunger Games: Catching Fire and asked why she did not give that song to the wife of Jay-Z. "I gave her my other best song," the singer wrote.

Questioned by another fan if this song would be the already announced "Standing On The Sun," Sia said that her other song was chosen by Beyoncé and her team to make the album.

The voice of "Titanium" and "She Wolf" has created compositions for artists such as Jennifer Lopez, Katy Perry and most recently, Britney Spears.

Listen to the new track from Sia, "Elastic Heart" below: