Gotye’s “Somebody I used to know” undoubtedly became one of the year’s most popular songs. When a song becomes this popular, covers in a variety genres start to popup on YouTube. In Gotye’s case, hundreds, maybe even thousands of covers started to emerge on the interwebs. And how did he respond to it? Gotye began to compile some of the best ones and turned it into this. This guy really knows how to show his fans appreciation.