American Idol winner Fantasia Barrino is putting a stop to pregnancy rumors, but she does admit to gaining weight, saying it's for a role in a new film she'll be starring in.

"Fantasia is 100% not pregnant. The only thing she's pregnant with is prosperity," the 26-year-old's manager, Brian Dickens, told RadarOnline.com in an exclusive interview.

"In fact, she's just signed on to play the lead in Mahalia and has been told to gain 30 to 45 pounds for the role."