First thing first: some videos are just for pure entertainment. Especially visual. If you are looking in them some depth, please refrain, or your ears/eyes will be hurt. For anyone who likes just funny upbeat sounds, here we are.
But, the first video is from Bad Guy drama, so no funny, upbeat song. It's rather gloomy, but nice. Yes, I'm biased, KNG is in it, that is why, hehe.
Seriously, what's wrong with listening to a cheerful, average music? There's nothing better in giving me energy than a quick shot of mixture of Arashi, Big Bang and 2AM. Hell, I'm having fun, do not disturb.
When I want to listen to anything on a higher level, I listen to Bang Jung Seok, Deli Spice, W& Whale, or Yiruma. Sometimes all of these are on the same playlist. I'm ecclectic.
Or just some OST, like for Chuno. Keke.