Rihanna unhappy with size zero body

Los Angeles: Pop star Rihanna is unhappy with her size zero body and wants to get back to her curves."I'm a size zero and not happy about it! I went way too far. I prefer myself a bit chunkier. I want my old butt back," contactmusic.com quoted Rihanna as saying.The 24-year-old is working on her seventh CD and is trying to squeeze in some more to relax, but her jam-packed calendar is having a slimming effect on her body.[caption id="attachment_343896" align="alignleft" width="380" caption="Reuters"][/caption]"I want to do two more movies before touring again next year. My schedule is crazy," she said.She stunned audiences in a black, reptile-inspired Tom Ford gown but had fans worried about her shrinking frame."I got no sleep (beforehand). It's harsh on your body," she said.Experts have suggested that Rihanna may be suffering from narcissistic personality disorder, while friends insist she is feeling lost.IANS