(CNN) -- Fantasia Barrino's recent weight gain fueled online rumors that the R&B singer was expecting a child, but her manager gave another explanation.
"Fantasia's pregnant with prosperity," manager Brian Dickens told CNN on Tuesday.
The 2004 "American Idol" winner is gaining weight in preparation for a movie role, Dickens said.
Barrino, who has been signed to play legendary gospel singer Mahalia Jackson, must gain 45 pounds by the time filming starts in May.