strike cheek

These are the scenes from a Korean drama called "Jumong."
The collection of the cheek-striking scenes reminds me the "f*ck" clip & the "yeah" clip Rick showed us in class. (Except a song is inserted in this one)
I'm not going to translate the lyrics, but it's basically explaining who is striking who for what reason (in a very enthusiastic way). So, yeah, I guess someone made up this song to put in the video.

*PS. And it's repeating the phrase [strike the cheek whenever you hate them] throughout the song..........Just in case you're curious.