R&B singer Rihanna might show off an enviable slender figure, but the star loves fast food and gorges on pizzas and fries.

The 'Umbrella' hitmaker has proclaimed her fondness for junk food by asking for calorific treats containing over 7,000 calories for her album launch next Monday, reported Contactmusic.

The 21-year-old star is set to perform in London next week and amazed organisers with her requests for her favourite food items which included crisps, microwave lasagnes, friend noodles, chicken drumsticks - and an apple.

"When it comes to the big US stars, we're used to getting ridiculously healthy requests. Rihanna was a breath of fresh air. There was none of this carb and gluten-free nonsense," said a source.

Rihanna refuses to watch her diet because she believes performing helps her stop piling on the pounds.

"Being on tour gets you in shape which is good considering how I eat pretty much whatever I can get my hands on. You perform for an hour and a half so you can work some of it off at least. But not all of it!" she said.