Key has dropped his performance music video for "Killer."

"Killer" is the title song of his 2nd repackage album of the same name, and it's about the regret and pain of not being able to forget someone after a difficult goodbye. In the performance MV above, the SHINee member offers fans a closer look at the song's sleek choreography.

Watch Key's "Killer" performance MV above, MV here, and let us know what you think in the comments below.