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

The gorgeous British singer is over the US promoting her new album and she became an all-American cheerleader for her stunning show in Tampa, Florida.

Charli is on the festive tour with the likes of Jessie J and Iggy Azalea and she showed off her legs and bottom to fans in a revealing black and white outfit.

(Image: Splash)

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

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

Nailing their hit song Bang Bang together, the two singers were electric wearing sexy ensembles, and the Price Tag star went for a sheer top over her underwear for the show at tje BB&T Center.

(Image: Getty)

Afterwards Ariana wasn't the only one feeling the love as she cosied up to her duet parter.

Jessie was also full of affection as she gushed over the pint-sized popstar with an Instagram post.

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