"Smile" is a song by Canadian recording artist Avril Lavigne from her fourth studio album, Goodbye Lullaby (2011). It was co-written by Lavigne, Max Martin and Shellback and produced by Martin and Shellback. "Smile" was released on April 11, 2011 by RCA Records as the second single from the album to Australian radio stations and then on May 17 in the United States contemporary hit radio. Upon its release, the song received critical acclaim from music critics, who described the track as a "sassy and catchy pop song". It has charted inside the top-thirty on the Australian, Japanese and New Zealand charts, in addition to being certified by the recording industry associations of Australia and the United States. A music video directed by Shane Drake was filmed in April 2011 and released on May