It's official: Ashanti is no longer Nelly's boo. According to sources, the R&B songstress split with the rapper because he was not ready to settle down. (In fact, Nelly was recently spotted with video vixen Jessica Rabbit in Las Vegas and Miami.) Neither star has commented on the status of their five-year relationship, but the hip-hop power couple has not been seen together in recent months. [Bossip.com]