In 2008, Lavigne introduced her clothing line, Abbey Dawn, and in 2009 she released her first perfume, Black Star, which was followed by Forbidden Rose in 2010, and Wild Rose in 2011. Whibley and Lavigne continued to work together, with Whibley producing her fourth album, as well as Lavigne's single "Alice", written for Tim Burton's film Alice in Wonderland.
She voiced Heather, a Virginia opossum, in the animated film Over the Hedge in 2006.
That same year, she made her on-screen feature film debut in Fast Food Nation.
Lavigne also performed at country fairs, singing songs by Garth Brooks, the Dixie Chicks, and Shania Twain. Her first song was called "Can't Stop Thinking About You", about a teenage crush, which she described as "cheesy cute".
During a performance with the Lennox Community Theatre, Lavigne was spotted by local folksinger Stephen Medd.
Three months after the release of Goodbye Lullaby, Lavigne began work on her eponymously titled fifth studio album, which was released by Epic Records on 1 November 2013 following her departure from RCA Records in 2011.