Damn, he sure did steal that, down to her video premise... 'she's dancing cause "she's happy". He needs to compensate this girl, asap.
This is a pretty good NPR article on the whole controversy. It seems like people who tend to believe people are copying off of someone need to really pay close attention to the details and the whole ordeal before jumping to conclusions that someone stole from somebody. If that's the case, then we have to say that someone would have to steal musical samples from dead musicians and such. But, this is nothing new. This sort of happy behavior is expected on a socially understood level. http://www.npr.org/blogs/13.7/2014/...celebration-the-joy-of-dancing-in-the-streets
It is the very nature of paying attention to the details that usually exposes infringement. Marvin Gaye's family would also disagree with you on the 'Blurred Lines' plagiarism controversy, which Pharrell also co-produced with Thicke.
But it's a far cry from infringement in this case. The Gaye family just took noticed of some minor sampling of their music and turned it into a heavy controversy. Hardly anything worth being considered a comparison. Marsen's work isn't anything original as well, as the erratic "dancing" of a person flailing their body around is more than purely coincidental. As stated from the person in the article, who actually specializes in the music business: It's just dancing after all! But what this does rule out is the possibility that it's even possible for her choreographic ideas to have been ripped off. The dancing routine doesn't belong to Marsen, nor the music. That sort of dancing is pretty much something everyone does, rhythm or not.
Anne Marsen deserves some recognition. Her moves inspired the Pharrell video. And she has a nice butt, too.