Rita Ora thinks record labels shouldn't be allowed to dictate singers' style choices.

The 'Radioactive' hitmaker is known for eccentric style - famously mixing high street clothes with high end couture - and refuses to be told what to wear by her record label Roc Nation, likening the process to ''telling you what to sing''.

In an interview with US edition of ELLE magazine, she said: ''That should never be allowed. It's like somebody telling you what to sing.''

The confident singer also boasted how she managed to barter a free dress from Marchesa designer Georgian Chapman to wear to the MTV Europe Music Awards last year.

Rita, 22, turned heads on the red carpet in a stunning red gown with an embroidered bodice at the ceremony in Frankfurt, Germany.

She said: ''I went up to [Marchesa designer Georgian Chapman] and said, 'Hi, I'm Rita. Nice to meet you. I need to wear your dress.'

''She was like 'What dress?' They've got 10 million dresses. I said, 'Look, I have your dress as the screen saver on my phone. This red dress needs to be on my body.' ''