You've probably already seen these, but these are just a few reccomendations.
You have to watch these and show them to all your friends :D

Numa Numa
Star Wars Kid
Star Wars Kid Sequels
Napoleon Dynamite Soundboard
Japanese Ping Pong
STFU

These are just cool:
Shii's Song
Xiao Xiao Fight 3

Okay, that's it. Enjoy.

i saw the numa numa one; its hilarious; cracks me up

NumaNuma is my favorite out of them. that guy is hilarious. and the song is catchy :D

Shii's song is the best.

It used the Lunar song... I loved the song...

lolll..the japanes ping pong wuz cool..and the STFU LOLL i watched it like a million times..and the numa numa song's stuck in my head now -__-