In the year 2012, people on YouTube watched over 4 billion hours of video a month. Youtube Rewind is a compilation of the trending videos that captivated millions of users. Head over here to see the compiled playlists for various trends. The following two videos are a must watch.

Rewind YouTube Style 2012 is a mash-up of culturally defining moments of 2012.

Interactive Timeline: YouTube Rewind 2012 (Global)

Links:
Youtube Rewind
Rewind YouTube Style 2012
Interactive Timeline: YouTube Rewind 2012 (Global)
Youtube Rewind 2011