who havent seen this yet must see it now
http://www.youtube.com/watch?v=OaH1MpBuREA&feature=related start at 0:20 if u dont want to watch intro ^^
D-Efeitos (D-FX) uses the music genre Glitch Music - Electronic Music with "erroneously" sounding glitches in the rythmic programming - and several techniques from Urban Dances as Waving, Robotting, Animation and Warping. In these musical 'defects', the cast of D-Efeitos executes the fragmented and vibrating dance, accelerating and decelerating, performing the song as a mathematical artistic expression. Vibrations on the sound waves become vibration and body waves. Sound delays manipulate the moves in a simulation of break in space-time. Each one of the notes and musical flaws are explored to become movement and body illusions.