While Sia's broken into the Top 40 realm with her brilliant melancholy singles ("Chandelier") and writing skills ("Diamonds," "Perfume"), today we find ourselves listening to an entirely new side of the Australian chanteuse—a super-happy one.

For the upcoming Annie remake being executive produced by Jay ZWill Smith and Jada Pinkett Smith, Sia covered "You're Never Fully Dressed Without a Smile," a peppy, jazzy tune heard in the original 1977 musical. But in this new version, Sia reworks the sound with a semi-tribal synth beat and then updates the lyrics to namedrop designer brands and today's lingo.

And if you're digging Sia doing Annie, she's also recorded another song for the compilation along with a duet with Beck. The soundtrack drops next month, November 17, with the film out a month after on December 19.

Don't forget Sia's "Chandelier" video is fighting to be named the top vid of the year in Fuse's Top 40 of 2014, up against "Say Something" by A Great Big World and Christina Aguilera. Support the songstress with your votes right here!