"Smile" is a single by Australian recording artist Dami Im, released on 26 May 2015. It was written in Solna, Sweden by Im, Hayley Aitken and Olof Lindskog, and produced by the latter under his production name Ollipop. "Smile" is an upbeat bubblegum pop and doo-wop song that consists of a saxophone rift, electric guitar, synth, handclaps, harmonies and backing vocals. Several critics felt its production was reminiscent of Meghan Trainor's sound. Lyrically, "Smile" conveys a positive message "about loving and appreciating yourself and doing all the simple things in your life to make yourself smile and be ultimately happy." The song received mixed reviews from critics; some complimented its fun pop sound, while others criticised the simple production and Im for following Trainor's sound.

Upon its release, "Smile" debuted at number 48 on the Australian ARIA Singles Chart, number 55 on the South Korea Gaon International Download Chart and number 63 on the South Korea Gaon International Digital Chart. The accompanying music video features Im performing random acts of kindness as she gives out flowers, balloons, free coffee and drinks to people in the streets of Sydney, and visits a nursing home and childcare centre. Fans noted that the video's concept was similar to country duo O'Shea's video for their song "Bad Day Good" (2014). Im promoted "Smile" with interviews and performances on radio and television programs, as well as instore appearances.

"Smile" was written and recorded in Solna, Sweden.Dami Im co-wrote the song with Hayley Aitken and Olof Lindskog of the songwriter collective, The Kennel. It was produced and mixed by Lindskog under his production name Ollipop. The mastering was done by Leon Zervos at Studios 301 in Sydney. On 23 April 2015, Im announced on her social media platforms that "Smile" would be released as her next single. It was then made available to pre-order the following day. The song was first released digitally in South Korea on 26 May 2015. It was released both digitally and physically in Australia on 29 May 2015. The physical release features a Holiday remix of "Smile", which was produced and mixed by Carl Dimataga. He also provided all instruments and Audrey Dimataga provided additional backing vocals. The remix was later released digitally on 26 June 2015.

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