On Saturday, June 7 of this year, a free concert was held in Yokohama, Japan. So besides being free, what else was so great about it?

Well, the entire power for the concert was generated by the concert-goers!

Titled the “Yokohama Human Powered Concert: Power Saving Saves the Earth,” this concert used four old refurbished bicycles that people would ride to generate the power. This power was supplied to the PA system and other stage equipment.

There was even a solar-powered cooking demonstration!

Here’s the poster:

Okay, all fans didn’t have to pedal for power. Volunteers were asked to do this, and many happily accepted.

I can only imagine if fans in the U.S. would be able to do this. We environmentalist love to help out the environment, but when it comes to exercise, that’s a whole other subject.