In July 2006, Lavigne married her boyfriend of two years, Deryck Whibley, lead singer and guitarist for Sum 41. The marriage lasted a little over three years, and in October 2009, Lavigne filed for divorce. Whibley and Lavigne continued to work together after the divorce, with Whibley producing on her upcoming fourth album, as well as Lavigne's single, "Alice", written for Tim Burton's film Alice in Wonderland.