Many collaborations and mash-ups of their hit songs have flooded the internet, but MC Hammer and PSY took to the stage at the 2012 American Music Awards to show everybody how it's really done. publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.

Comment on this story
Comments have been closed for this article.
There are new stories on the homepage. Click here to see them.