Park Jae Sang, better known in his homeland as PSY, is a South Korean hip hop artist who is "popular underground due to his sense of humor and unique concerts," according to Wikipedia.
The Berklee College of Music graduate recently released "Gangnam Style" — his first single in two years — and the music video that accompanies it is a thing to behold.
One Redditor-in-the-know offered this illuminating commentary on what it all means:
From what I understand, Gangnam is the fancy schmancy rich part of Seoul. The video is making light of him singing about what a classy dude he is while screaming at yoga butts and dancing in garages and junk.
That's certainly more insightful than the video's YouTube description, which claims the song's beat and lyrics are so addictive, they are "certain to penetrate the foundations of modern philosophy."