Forget about kissing a girl under the mistletoe – Katy Perry made us feel all festive as she delivered a roaring performance at the Jingle Bell Ball.

Dressed in a shimmering leotard dress with slinky tassles and some fish net bejewelled tights with silver peep show heels, Katy wowed the 16,000 strong crowd with a performance of I Kissed A Girl.

Joined by a troop of dancers dressed as Christmas elves as she launched into her 2012 hit Part Of Me, before wrapping up in a furry coat for Wide Awake.

Katy then belted out Prism called Walking On Air to huge cheers from the crowd, and then went on to perform a medley of her fan-favourite songs California Gurls and Teenage Dream.

The Roar singer looked fierce in a thigh-split floor-length pink leopard-print dress (not something many of us could pull off) on Saturday night at the Capital FM Jingle Bell Ball.

One fan gushed on Twitter: “OMG @katyperry singing ROAR made my life” while another said: “”Little bit in love with Katy Perry after Jingle Bell Ball”.

Dressed in a hot pink creation for the red carpet with a pair of gold hoop earrings, black pointy courts, red nail varnish, and, er… some giant gold safety pins (we’re not sure if they were part of the dress.)

Miss P wore her oh-so-shiny locks in a high pony, which highlighted her cheek bones and flawless make-up perfectly.

Katy is performing at tonight’s event alongside Tinie Tempah, Olly Murs and Ellie Goulding.

And it seems Tinie Tempah is really looking forward to catching up with KP.

He told Capital FM:”I definitely want to have a chat with her because I’m a big fan of her and we were actually signed to the same label in America a while ago, so it would be great to talk to her.”

“Maybe talk about a collaboration one day who knows?”