Japanese koto band doing covers of modern rock hits - what's their name?

My memory is pathetic. A few months ago I read about a Japanese band who arranged modern rock and pop hits for the koto. There were maybe 4 of them in the band, and I think they all played the koto. I saw their CDs online. I saw their files on P2P networks. Now I can't remember who they are, what they're called, what songs they did or anything else about them. Or even if they were any good. I've spent hours searching online, but it's been overwhelmingly fruitless. Can anyone help? Thanks in advance!