Psy has revealed that the video was all about convenience and fun. They went with the flow and headed to a stable, a sauna, a tour bus and included whoever interesting came their way.
About the dance off with the man-in-the-yellow suit, Psy said, "We just played the whole song and we just danced what we know in our lives." That's as impromptu as one can get!
Here's to living life Gangnam Style!