According to data released by Google, Psy's "Hangover," featuring Snoop Dogg, was the most watched K-pop MV on YouTube in 2014. 

The "Hangover" music video is a comedic interpretation of the Korean drinking culture, featuring rapper Snoop Dogg, Big Bang's G-Dragon, and 2NE1's CL. The MV was released on June 8 and garnered over 100,000,000 views in just 40 days. Currently, the view count stands at just over 164 million views. 

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In addition, Youtube recently had to upgrade their system because the "Gangnam Style" view count surpassed the max value for a 32 bit signed integer.

Meanwhile, EXO's "Overdose" placed 2nd on the list, confirming their place as one of the top male groups of the year and Girls' Generation's "Mr.Mr." placed 3rd on the list. Rounding out the top 5, 2NE1's "Come Back Home" placed 4th and Taeyang's "Eyes, Nose, Lips" placed 5th.