On “2011” 5 Seconds of Summer looks back at the beginning of their career after ten successful years together.

The band announced the song via their socials on November 30, 2021, as a celebration for the group’s ten year anniversary:

This Friday, we’re releasing a new song called “2011,” just for you. We wrote “2011” to celebrate 10 years of this band, 10 years of adventures through life, and most of all, 10 years of you, our fans. We love you, and we can’t wait for the next 10. Out everywhere December 3rd.

Drummer Ashton Irwin has also posted a drum teaser of “2011” months before the song’s release.