This is what is so great about remixing other people's ideas Agree 100% with that sentiment.
Indeed, that's one more reason to like this guy, PSY
"According to The Guardian, PSY has waived his copyright to the music video. Although this has not been officially confirmed, Arwa Mahdawi of The Guardian reported it was likely that PSY had simply refrained from taking legal action against parodies of his video. "Gangnam Style" is therefore a video that is "born to spawn"" [1]
There is no legal claim against parodies. The copyright allowance was in allowing people to distribute the original video and/or audio (for example, reusing the audio track in a new YouTube submission)
Indeed, that's one more reason to like this guy, PSY
"According to The Guardian, PSY has waived his copyright to the music video. Although this has not been officially confirmed, Arwa Mahdawi of The Guardian reported it was likely that PSY had simply refrained from taking legal action against parodies of his video. "Gangnam Style" is therefore a video that is "born to spawn"" [1]
[1] http://en.wikipedia.org/wiki/Gangnam_Style