Top 20 Most Watched YouTube Videos in 2013 (Music & Trending)

The year 2013 is going to end in two weeks. Already the list of happenings in 2013 is flowing out from every social media. In this List YouTube has released the top 10 most Popular Videos of 2013. You might remember that PSY Gangnam style is the most popular video in 2012. In the 2013, […]