Britney Spears and Iggy Azalea
Credit: Light Brigade/Bauer-Griffin/GC Images

The 2015 Billboard Music Awards just got even more exciting! Britney Spears and Iggy Azalea are set to perform their upcoming single "Pretty Girls" live for the very first time during the show.

The queen of pop announced the news on Instagram today (below), sharing a photo that she captioned: "Time to put the rumors to bed & take #PrettyGirls to the stage! CAN’T WAIT to perform w/ @thenewclassic at the @OfficialBBMAs!"

The pair was spotted a few weeks ago filming a music video for the certain hit (the song drops May 5) in Los Angeles, where we got a glimpse of what we might be able to expect during their sure-to-be-epic performance---think major '80s hair and killer dance moves.

Tune in to the 2015 Billboard Music Awards—hosted by Ludacris and Chrissy Teigen—when they air live on Sunday, May 17, at 8 p.m. ET on ABC.