Some combination of the horrible quality of this video, its foreign subtitles, and the choppiness of these perfectly timed songs makes this mash-up extremely hilarious to me. Woody Harrelson breaking into "Be a Man" from Mulan is pretty much perfection. (Watch out for one bad word at 2:02!)
And then the girl went and made another one! It actually surpasses the first in its brilliance, because the one-liners are just so perfectly placed. "Hey, I just met you..and this is crazy...but I changed your leaves twice."
*first seen on busy bee lauren*
Bonus: Will Ferrell as Katniss.