A little over a week ago, 'Gangnam Style' passed the 2 billion views mark to increase its lead as the most watched online video of all time.

And what better way to celebrate than inviting Snoop Dogg over for your new music video? 

'Hangover' is as amazing and bizarre as you would expect - following Snoop and Psy as they engage in some 'hair of the dog' antics across a bathroom, pool hall, cafeteria and more.

There's even a bit of Korean rapping from Snoop!