Charli XCX took the stage in New York City's Webster Hall on Monday, Oct. 7, where she performed tracks from her upcoming 'Sucker' album. But the rising singer-songwriter gave fans a bigger treat when she performed her collaboration with Iggy Azalea, 'Fancy,' completely by herself.

When an artist performs a track live without their superstar collaborator, usually they will simply play a recording of the absent artist or have one of their backup singers replace the vocals.

But Charli XCX brought out her inner Iggy and rapped Iggy's verses over a recording of Iggy's voice, while her band put their own spin to the 'Fancy' track. Wearing a cheerleading outfit with the word 'sucker' on it, as well as a homecoming queen crown, she owned the song (and the stage), showing us that we have a true superstar in the making.

The British singer-songwriter recently released her second single, 'Break the Rules,' off the 'Sucker' album. Her first single, 'Boom Clap,' has sold over one million copies in the U.S. already.

Click on the fan video above (originally posted on Billboard) to watch Charli XCX take on 'Fancy' alone.