What the Hell (Goodbye Lullaby)

"What the Hell" is a song by Canadian recording artist Avril Lavigne. The song was written by Lavigne with Max Martin and Shellback, and produced by Martin and Shellback for Lavigne's upcoming fourth studio album, Goodbye Lullaby (2011). "What the Hell" was released on 10 January 2011 as the lead single from Goodbye Lullaby. The song received generally positive reviews from music critics, with many complimenting its catchiness and comparing it to her previous single "Girlfriend" (2007).