west side story https://www.youtube.com/watch?v=bxoC5Oyf_ss
beat it https://www.youtube.com/watch?v=oRdxUFDoQe0
ballet vs hiphop https://www.youtube.com/watch?v=cpeevuvJKjE
step up 4 https://www.youtube.com/watch?v=y1lK_yy4aw8&list=RDy1lK_yy4aw8#t=317