Rihanna bids goodbye to her naturally curvy body with her recent weight loss. The singer appears to be skinnier as her weight plummets even though she has stopped dieting.

During Ryan Seacrest's show on Kiis FM , the 23-year-old singer went on discussing about the slimmer figure she sports nowadays.

Rihanna admitted that she started dieting at the start of this year. She lost some pounds thanks to a Hollywood favorite method called the "Five Factor Diet." However, she complains that although she has stopped with the diet plan, she continues to lose weight.

"The Five Factor Diet has gone straight out the window ever since I went on tour. I mean, it's difficult to have any kind of routine when your schedule is that crazy," Riri said to host Ryan Seacrest. "So I really have no idea how I'm continuously losing weight."

Although she acknowledges her now thin and lean frame, she admits to being annoyed of losing two of the best features she had when she was still on the curvy side.

"It's actually pretty annoying, because now I don't have a butt, and I have no boobs. I already had no boobs to start with. So annoying! And I'm eating everything!" the singer rants.

The Five Factor Diet plan was created by personal trainer Harley Pasternak. The simple nutrition plan is based on "fives" which consists of five meals per day, five days a week exercise made up of five phases that are each five minutes long.

It was believed that Rihanna was encouraged to lose some weight after her father, Ronald Fenty, said she was a bit fat from the last time the two saw each other.

See more of Rihanna as she transforms from curvy to skinny.

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