'Gangnam Style' star Psy at VMA's!

In less than 2 months, Korean pop-star "Psy" has become the most famous artist on the planet. (kinda)

WATCH: "Gangnam Style"

So famous in fact that he was a "surprise guest" on last night's VMA's on MTV. Check out his interview backstage & find out what Psy will be up to next!

--Justin