"Smile" was released to iTunes store in the United Kingdom in spring of 2006 and it spent its first week at number 1 on the iTunes chart, before entering the main UK Singles Chart at number thirteen, based on download sales alone.
Smile was released to iTunes store in the United Kingdom on 26 June 2006, ahead of the physical CD release on 3 July. It spent most of its first week at number 1 on the iTunes chart, before entering the main UK Singles Chart at number thirteen, based on download sales alone.