Demi Lovato is celebrating girl power in the Oz…

The 22-year-old part-Mexican American singer/actress performed her latest hit single “Cool For The Summer” over the weekend with an all-female backing band on The Voice Australia.

Lovato, who oozed sex appeal during her performance, was joined by a six-piece female band. All rocked colorful 80s-inspired attire, complete with fur coats and hot pants.

Lovato slayed her vocals as the rest of the ladies jammed out on electric guitars, a keyboard, and drums.

After her performance, Lovato posted a picture on Instagram with the star-studded panel of The Voice Australia coaches, including Ricky Martin, Jessie J and The Madden Brothers.

Demi Lovato – Cool For the Summer (The Voice… by Momochi_Nya

“Cool For The Summer” has been sizzling on the Billboard Hot 100, breaking the top 20 at No. 19 in its fifth week on the chart.