News of the World reports Cameron Diaz has dumped *NSYNC boyfriend Justin Timberlake while the pair were in Cannes. The couple are yet to make a public statement confirming the split but a close pal said: “It’s over. The problem is, she isn’t really taken seriously in Hollywood because she is dating a pop star. Cameron feels she stands a better chance of taking her career to the next level without him.” The final straw came when Timberlake tried to persuade her to become his live-in lover. “Justin wanted Cameron to move in with him but she just didn’t feel ready to make that kind of commitment,” the source added.