A surprise birthday party was thrown for Rihanna by her closest friends in Los Angeles on Friday, February 20th.
The Rude boy singer was surrounded by her close pals as well as plenty of Hollywood heavyweights, including Beyonce and her hubby Jay Z.
The star was also joined by supermodel Naomi Campbell and Hilton heiress Paris and her sister Nicky.
Rihanna was presented with a huge three-tire cake and had her name made up with hundreds of balloons inside the venue.
The pop beauty was rocking a slinky silver dress for the occasion and huge hoop earrings.