The ''Where Have You Been' singer revealed that though she hasn't changed her eating habits, she has still managed to lose weight.
"I don't know if there's something going on with my body right now, but I'm eating everything in life!" Rihanna told Harper's Bazaar.
"I miss my ass," she continued. "It just went away! I need a butt. I have an idea of one, but it's not living up to its full potential right now."
In the same interview, the 24-year-old admitted that she finds it difficult to let her romantic partners get close to her.
Rihanna recently launched a lawsuit against her former accountants, claiming they cost her millions in earnings.
Watch the video for Rihanna's 'Where Have You Been' below: