This is pretty cool. From what I can tell, the rollerblader has something attached to his skates that is hitting the sides of the bottles to make music.
Spearhead singer Michael Franti puts skates on for the first time since he was 15 -- at Golden Gate Park. Watch past the introductory part to see him learning how to do the "coffin" trick. Sk8GodFather shared this on YouTube.
