2PM has surprised its fans with an unexpected teaser video!

On May 27, the group released a mysterious clip teasing “O2,” an upcoming video program that will feature all six members of 2PM. The teaser showcases several different meanings for “O2,” including “Ordinary 2PM,” “On-Air 2PM,” and “Over 2PM,” along with brief clips of the idols.

An accompanying message on 2PM’s official Twitter account revealed another meaning for “O2”: oxygen. The message declared, “The teaser video for ‘O2,’ a new video program through which you can see 2PM, whose existence is as necessary as ‘oxygen,’ has been revealed!

“From 2PM’s daily life to behind-the-scenes moments offstage! Please check out the teaser video right now!”

Watch the teaser clip for “O2” below!