When The Cro-Magnons played at this year's Fuji Rock Festival, you could have sworn the Big Quake had hit, with its epicenter at the main Green Stage. The ground shook, minor tsunami were recorded in the streams running through the site and squirrels fell unconscious from trees as about 15,000 punters jumped in unison to one of Japan's most popular rock 'n' roll bands belting out one fiery pop-punk gem after another.

This was no real surprise, as singer Hiroto Komoto and guitarist Masatoshi Mashima have a history of causing the ground to shake and open up beneath their feet.

"Once, The High-Lows (their previous band) played at a school festival, but the stage wasn't built for a rock band and the floor collapsed beneath us," said Hiroto at their record company BMG's office in Shibuya, Tokyo.