'Live It Up' hitmaker Tulisa Contostavlos has hit out at the press for publishing stories about her supposed weight gain.

Earlier this week, reports surfaced that suggested the singer had put on weight and had even asked her boyfriend, Danny Simpson, to help her shed the pounds, but she has now confirmed that none of this is true at all by tweeting:

"Story this week sayin Im a size 12 askin my boyfriend how 2 diet, yet theres a pic of me in LA 2day as a size 8. Lol back 2 the drawing board!"

She also revealed that she recently hitched a ride with a member of the paparazzi who had been following her around in Los Angeles and told her Twitter followers:

"So seeing as the paps are following me all day I've decided to get a lift off one to my next meeting lol!! Riding with the enemy! LOL."

Watch behind-the-scenes footage from Tulisa's cover shoot for FHM here: