“Boomerang” is the fourth digital single (fifth overall) by G22. It was released on February 24, 2023 as the group’s first anniversary comeback single.

On February 13, 2023, the group announced that they would be making a comeback on February 24, for their first year anniversary. The announcement was announced through a post on their Official Social Media Accounts. On February 19, 2023, the group revealed the title of their first anniversary comeback single through a teaser video.