Single of Goodbye Lullaby

Lavigne premiered the lead single, "What the Hell", on Dick Clark's New Year's Rockin' Eve on 31 December 2010 during a pre-taped segment along with a performance of "Girlfriend". Lavigne said the song is "a really fun, upbeat party song, so it worked out really well to play it for the first time on New Year's Rockin' Eve." The following day, "What the Hell" was available as a free download for 48 hours from Lavigne's official Facebook page. The video for the single was released in January 2011.