The Australian MC's ''Fancy'' sat atop the Billboard Hot 100 for seven weeks, and she had long, nattily tailored coattails: Her guest rap lifted Ariana…

It’s official! The highly-anticipated Britney Spears and Iggy Azalea collaboration “Pretty Girls” will makes its TV debut at the 2015 Billboard Music Awards, Billboard and Dick Clark productions announced Wednesday.

“Pretty Girls” is expected to drop May 5 and will appear on Spears’ ninth studio album, despite Azalea’s hopes to make the song hers. “I swung it back her way because she’s Britney Spears, you have to do that,” Azalea told MTV News. “She gets whatever she wants.”

The show already includes a star-studded lineup of performers, such as Kelly Clarkson, Nick Jonas, John Legend, and Sam Smith.

Spears’s career includes six BBMAs, and Azalea received 12 nominations this year, including Top New Artist, Top Female Artist, and the fan-decided Billboard chart achievement award.

The Billboard Music Awards air May 17 on ABC.

Billboard Music Awards
  • TV Show