Connection is the fourth Korean-language and fifth overall extended play (EP) by South Korean singer Onew.

In September 2024, Onew released Flow, his first project since departing SM Entertainment in early 2024.

The announcement stated that the song was to be a pre-release single for an upcoming EP to be released in January 2025, but no specific date or title were given.

[6] At the same time, a video was published detailing the promotion plan for the EP, including a tour entitled Onew the Live: Connection, to commence in February.

[7] Promotional material for the EP, including the lead single's music video, was filmed on-location in Prague, Czech Republic.