Just recently, via Twitter, Jay Park unveiled a photo of him and his buddies on the set of his upcoming single's (Demon) music video. Along with the photo, it was commented:

jay park, andrew baterina (choreographer for demon), jackie, Dee, David, Dru, HDK SO real on the set of the music video

Andrew Baterina was revealed to be the choreographer for his single Demon. Information regarding Jay Park's single, Demon, a track written by famous American producer Teddy Riley, was first reported back in April 2010. Back then, Jason Lee, an executive producer of Jay Park's movie, Hype Nation, stated that three additional tracks would be revealed on top of Demon, as all four will be used as Hype Nation's soundtrack. One of the four songs will be titled Fame, which will feature famous American rapper Snoop Dogg. Other famous American artists, such as singer Brandon and rapper T-Pain, have also joined in this project, a collaboration that has generated immense anticipation from many fans around the world. Stay tuned for his Demon single release!