The uplifting, infectious pop anthem reflects on how the star has persevered and “got back that smile” after suffering obstacles where everyday felt like “Groundhog Day” and her “motions felt so fake”.
In a statement, Perry said: “I wrote this song when I was coming through one of the darkest periods of my life. When I listen to it now, it’s a great reminder that I made it through.
It’s three minutes of energizing hopefulness.” Smile will be included on Perry’s fifth album of the same name, which has a release date of 14 August.
It will be her first full-length collection since 2017’s Witness, which spawned singles such as Chained to the Rhythm, Bon Appétit and Swish Swish.