Madonna and Psy Perform a 'Gangnam Style' Mash-up at MSG: VIDEO

Korean pop sensation Psy joined Madonna on stage at Madison Square Garden for a "Gangnam Style" mash-up of her dance classic "Give It To Me".

Watch, AFTER THE JUMP...

Hugh Jackman and Psy Dance Gangnam Wolverine Style: VIDEO

This happened this week in Australia, and could get dangerous if allowed to continue.

There is some video, AFTER THE JUMP...

(via reddit)

Britney Spears Learns to Dance 'Gangnam Style' on 'Ellen': VIDEO

On today's Ellen, she brings in Psy, the master of the viral dance sensation that's blowing up the internets, to teach Britney Spears how to dress classy and dance cheesy.

Check it out, AFTER THE JUMP...

And if you're one of the few who hasn't seen the original yet, it's here.