Demi Lovato & Iggy Azalea Perform at VMAs 2015! (Video)

Demi Lovato is joined on stage by surprise guest Iggy Azalea while performing at the 2015 MTV Video Music Awards held on the Pepsi Stage at the Microsoft Theater on Sunday (August 30) in Los Angeles.

The 23-year-old singer performed a fierce remix version of her song “Cool for the Summer” for the outdoor crowd.

PHOTOS: Check out the latest pics of Demi Lovato

Demi‘s song was nominated for Song of the Summer, but the award went to a band that has the word “summer” in their name – 5 Seconds of Summer for “She’s Kinda Hot.”

FYI: Demi is wearing a custom bodysuit and boots with a Georgine fur. Iggy is wearing a Sarah Magid Jewelry necklace and BaubleBar and Parade rings.

10+ pictures inside of Demi Lovato and Iggy Azalea performing…