Tell Me dance craze in Korea

i was in Katrina's placee yesterday and she showedme this You tube video (which is a dance craze in Korea)to the song Tell Me sung by a Korean girl group called Wonder Girls
you have to watch the original music video first:

now watch this Korean Traffic Police do the dance:

now this cute lil boy do it:

now watch the cute lil boy and the traffic police dance the same dance,i tell you its hilarious,you ain't see nothing yet:

there's even a dance tutorial for the dance: