When the power cut out during Roth Bart Baron's debut Fuji Rock performance last month, its members knew exactly how to improvise.

The indie rock band often closes concerts by unplugging its gear to play "Aluminum," so the members can easily switch off the amps if needed. Despite the momentary obstacle, vocalist Masaya Mifune says the crowd approved.

"We had no choice" he tells The Japan Times with a laugh. "The PA systems were down."