No Free "Ride" for Nick Cannon

Sounds like Christina Milian and Nick Cannon aren't making sweet music together these days. According to the New York Daily News, Christina has written a song on her album dissing her ex, and she's been talking about him on her recent press tour! "Everyone keeps calling it the Nick Cannon dis record," she told a NYC DJ. "Writing that record helped me get through [our break-up]. Writing is therapy to me. [The song] 'Who's Gonna Ride?' is a little bit more aggressive." Of course there's two sides to every story, and according to sources in Nick's camp, Christina's singing the wrong tune. "She's leveraging his success and using his name for press," says a friend of Nick's. "No one cares about Christina Milian. She's not Beyoncé." "The whole time they were filming [their movie together], Nick had a girlfriend, and Christina didn't care," says another source. "He ended that relationship out of respect for his girlfriend, and he hooked up with Christina. But then he found out she [hooked up] with a friend of his, so they decided to just have fun together. [Then] Christina started getting really serious," the source snitches. "She broke into his Sidekick and found e-mails from other girls." Hey, we're no experts, but we're guessing, in this case, love does cost a thing!