Chris Brown last week sent Rihanna a diamond bracelet and an iPod Touch for her 21st birthday, said the New York Daily News. Brown, who was arrested for allegedly beating RihaWillnna in a domestic dispute, “is doing everything he can to show her how sorry he is,” a source told the News. “He’s absolutely trying to get back into her good graces. He knows he’s very much in the doghouse right now.”