Alexandra Burke unfazed by beau Jermain Defoe's 'sex romps with model'

London, Apr 28 (ANI): Alexandra Burke danced in the arms of some hunky companions, despite reports emerged that her footballer boyfriend Jermain Defoe had cheated on her with a Geordie model.

The 'X Factor' star delighted students with a very risque performance at Stylus University in Leeds, the Daily Mail reported.

The 23-year-old donned a tiny pair of multi-coloured shorts that could have been underwear, showing off her toned derriere.

She paired them with a black mesh top, exposing her blue bandeau underneath and taut stomach.

She added a pair of black heeled boots and had her long brunette locks straight and loose.

The star gyrated against her male backup dancers and at one point put her foot on one of their chests as she sang. (ANI)