You monster!
At first, I thought this was goig to be something interesting, but you put Justin Bieber at the end! That's the worst thing you could possibly do! Seriously, this was at least a lot better than a lot of other goofy stuff I've seen here. Good thing you warned us it was going to be stupid. The best thing about this was that the animation used wasn't half bad. I must have a dirty mind, I thought the cup at the beginning had poop in it.
I don't think I've ever heard this song before. In fact, I don't even think I've ever heard of Miss A before. What matters is that you tried to make something that was a bit entertaining until they end. Another good factor is how you didn't make the song go on forever as it stopped after awhile. At least it wasn't that "Jeans" song.