Morris Day. And the real Harlem Shake was popular more than a decade ago, so it about evens out.
What? One can't parody a parody?
I hate Gagnam Style parodies. Gagnam Style was already intentionally comedic, it's a satire of South Koran consumer culture. "Parodies" of it aren't parodies, they're just stealing it's jokes.
Gangnam Style was played at the spring training baseball game I went to. Also played at the game was a David Hasslehoff song. Not only is Gangnam Style old, but I think it's safe to say it's dead.
They both suck.