PSY now has the most viewed video on Youtube.  Since getting posted to Youtube on July 15, the Korean pop song has been viewed over 825 million times.  That passes the previous record set by Justin Bieber's Baby.

The Justin Bieber song has been on Youtube since February of 2010.  While PSY's video has been "liked" over 5 million times and "disliked" around 300,000 times, the Bieber video has received less than 1.5 million "likes" and over 3 million dislikes.