Just like in real life, the web loves to remember the past year as New Year’s approaches. Creating pop music mash ups from all of the year’s most viral and popular singles is almost an unofficial tradition now. 

Daniel Kim took the initiative, and was the first to go viral this season with his ultimate pop music mash up.

Now, Dj Earworm, who has over a quarter million YouTube subscribers, has stuck his foot in the race with his own outstanding mash up, United State Of Pop 2012.

Which is better?