YouTube presents a look back at 2012 with "Rewind YouTube Style," a quintessential mashup parody of "Gangnam Style" and "Call Me Maybe" starring the who's who of this year's viral video fame, including PSY, Walk off the Earth, MysteryGuitarMan, Jenna Marbles and more!

How does one discover this?

It was inevitable, but it's actually decent -- give it a listen.

[cosbysweaters]

Warning: strong language and explicit sexual content make this mashup oh so wrong, but also OH SO RIGHT.

Gotye's hit of the summer spawned so many YouTube parodies that he assembled literally hundreds of them to create a definitive "YouTube Orchestra" mashup. We'll let him speak for himself:

Reluctant as I am to add to the mountain of interpretations of Somebody That I Used To Know seemingly taking over their own area of the internet, I couldn't resist the massive remixability that such a large, varied yet connected bundle of source material offered.