Rihanna celebrated her 21^st Birthday this Friday with her friends and of course Chris Brown was not on the guest list, however the pop star couldn't escape him completely. "Chris called Rihanna to wish her a happy birthday," an insider tells us. "He's absolutely trying to get back into her good graces. He knows he's very much in the doghouse right now, and is doing everything he can to show her how sorry he is." Chris is really sorry for his behavior towards Rihanna and making his best to prove his love. Do you want to guess what all Chris sent Rihanna for her birth day gift? Yes a long list! A diamond bracelet and necklace, as well as an iPod Touch. Plus, Brown's mom, Joyce, who is said to adore Rihanna, sent over a bouquet of flowers. How sweet of both of them.

I think attention seems to be working. RiRi may just reconcile with Brown, say sources. "Rihanna so wanted Chris with her on her big day, but obviously realizes why they can't be together right now," our insider says. "But it's becoming more and more clear that she can't be without him."The gorgeous songbird had something to celebrate besides her B-day - she's healing quickly from her recent injuries. "She hasn't scarred or anything," our insider reports. "She was in a great mood. She was really celebrating not just her birthday, but life in general." Let's hope Chris continue to be good with Rihanna. Here we can see Chris Brown on the set of his movie Bone Deep in L.A.

(Source: nydailynews.com)