Nicki Minaj has been dubbed ''incredibly rude'' after turning up six hours late for a photoshoot.

The 31-year-old rapper arrived at 2am to shoot photos for a future issue of Billboard magazine in New York, and has since been blasted by staff for her rude behaviour.

A source told The Sun newspaper: ''Nicki turned up six hours late - everyone had been waiting all night for her.''

Unfortunately for the people working on the shoot, the New Yorker - who will release her second full-length studio album 'The Pinkprint' in December - was on poor form after her late arrival, and was feeling too sleepy to pose for the camera.

The insider continued: ''Even then she wasn't apologetic. She just kept falling asleep. It was incredibly rude and everyone was getting really angry with her.''

This isn't the first time that the 'Superbass' hitmaker has been branded a diva, as actor and television personality David McIntosh also slammed the musician for her attitude when filming her recent 'Anaconda' video with her.

The 28 year old said: ''Did I like her? No. She's a bit of a diva to be honest.''