Rihanna has admitted that she isn't too happy about her body size.

The singer was speaking to Us Weekly when she opened up about her size - something that she wants to make a little "chunkier".

Rihanna said she is a size zero but she now wants her "old butt back". She said:

"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!"

Rihanna meanwhile is also quoted as saying that she would like to do more acting - two more films before hitting the touring circuit again. She said:

"I want to do two more [movies] before touring again next year. My schedule is crazy!"