Last Sunday, Rihanna celebrated her 23rd birthday. The platinum selling artist performed half-time during the All-Star game and threw a birthday bash for herself.
Rihanna says in her twitter, "Go grawl, its ya birthday, ITS PARTY TIME! All my best friends are here!!!! And my BRO!! Wish u cud see how SICK this s**t is!!! Stay tuned."
One bestie was missing and that was pop star Katy Perry who is currently on tour. "Happy birthday boo. Wish I could b there to blackout! Luv U!", Perry replied on Rihanna's Twitter page. Rihanna replied, "B**ch are u kidding? I missed ur WEDDING!! This is small stuff boo! When work calls."