Weezer's Rivers Cuomo & Jermaine Dupri: The Billboard Cover Story & Video
Weezer's Rivers Cuomo and Jermaine Dupri on the cover of Billboard, November 21, 2009. Erin Patrice O'Brien

But despite the fact that Cuomo had written so many hits on his own, he shied away from writing with others until fairly recently. "The first time I co-wrote with someone was about two years ago," he says. "Shirley Manson [from