Lee Chae Yeon is just one day away from her comeback and is getting ready until the last moment.

To prepare for her comeback, Lee Chae Yeon released the second music video teaser on April 11 at midnight KST. In the music video teaser, she shows the charismatic choreography for the title track, "KNOCK."

Lee Chae Yeon's new mini-album 'Over the Moon' will be released on April 12 at 6 PM KST. So make sure not to miss out on the mini-album release!