Rockers Avril Lavigne and Deryck Whibley have split up, Us Weekly reports.

"She dumped him and told him she was leaving him. She wants to move on," a source tells the mag. The source also says Lavigne kicked the Sum 41 frontman out of their $9.5 million Bel Air estate.

"Divorce papers will be filed any day now," the source predicts.

Lavigne, 25, and Whibley, 29, tied the knot in an elaborate 2006 wedding at a private estate in Montecito, Calif.