Rita Ora performed a saucy lap dance in front of rumoured boyfriend Dave Gardner on Tuesday (30.04.13).

The 'R.I.P.' hitmaker took to the stage to perform a raunchy version of 'Happy Birthday' at party planner Fran Cutler's surprise 50th birthday celebrations, with guests at London's The Box nightspot including the sports agent, who she has recently been romantically linked with.

However, despite their rumoured closeness, Rita and Dave stayed apart for the evening, with the singer arriving late with close friend Cara Delevingne, while Dave was hanging out with pals including Jack Whitehall, Nick Grimshaw and Pixie Geldof.

Rita's wasn't the only performance of the evening, Fran's best friend Kate Moss introduced a set from Primal Scream, and 'Notting Hill' actor Rhys Ifans gave a 'This Is You Life'-style presentation about the birthday girl.

Rita, Cara and Pixie Geldof left the 'Lucky Bitches'-themed bash at 1am while some of the other guests, including Kate - who was accompanied by husband Jamie Hince - didn't depart the venue until after 4am.

Other stars in attendance at the 'Frantastic at 50' party supported by ABSOLUT Elyx vodka were Noel Fielding, Stella Mccartney, Bob Geldof, Sadie Frost , Jo Wood and her children Leah and Tyrone.