Charli XCX, the British singer, gave her fans a festive surprise as she flashed her bum during a raunchy Jingle Ball performance on Tuesday.

The singer is currently promoting her new album in the US and is on a festive tour with the likes of Jessie J and Iggy Azalea.

Charli became an all-American cheerleader for her stunning show in Tampa, Florida, showing off her legs and bottom to fans in a revealing black and white outfit.

The cheerleading costume bared the name of her new record Sucker, flaunting her body in a very short skirt as she performed a number of energetic tracks for fans.

Fellow Brit Jessie J stole the show with Ariana Grande over the weekend after the American beauty showed off in a tiny black bodysuit.

The two singers performed their hit song Bang Bang together, wearing s**y ensembles.

The Price Tag star went for a sheer top over her underwear for the show at the BB&T Center.

After the performance, Ariana and Jessie shared a moment of affection, with Jessie posting an Instagram photo of the two of them together.

She wrote: “Love this girl @arianagrande going to miss singing with you these past weeks have been so much fun! #bangbang #jingleball #fortlauderdale.”

Charli XCX and Iggy Azalea have been on the road together since September and have performed at a number of Jingle Ball concerts.

They have also collaborated on a number of songs, including the hit “Fancy”.

Charli’s new album Sucker was released in December 2014, and features collaborations with a number of other artists, including Weezer’s Rivers Cuomo and Vampire Weekend’s Rostam Batmanglij.

Charli’s Jingle Ball performance was not the first time she has shown off her body during a performance.

In October 2014, the singer performed at the MTV European Music Awards in a revealing outfit that left little to the imagination.

The outfit consisted of a black bra, matching knickers, black suspenders, and a sheer skirt.

Charli’s performance was well received, with many praising her for her confidence and bravery.

Charli has spoken openly about her body image in the past, and has said that she wants to encourage other women to be confident in their bodies.

In an interview with the Daily Mail in May 2014, she said: “I’m not a size zero and I never will be.

“I’m not really interested in being that kind of person.

“I like food and I like to have a good time.

“I think it’s really important for young women to see that you can be confident in your body and be who you want to be.”

Charli XCX is known for her catchy pop songs and her unique sense of style.

She has been praised for her ability to blend different genres of music, and for her bold fashion choices.

The singer has been compared to other pop stars such as Lady Gaga and Katy Perry, and has been hailed as one of the most exciting new artists in the music industry.

The Jingle Ball concerts are an annual event organised by iHeartRadio, and feature some of the biggest names in music.

This year’s line-up includes Taylor Swift, The Chainsmokers, and Ed Sheeran, among others.