Piper Cherokee isn't a band, but the (probable) model of that plane. It could be something related, actually, as Piper manufactured several models with a similar airframe to the Cherokee, and there are probably some replicas in circulation, too. This was taken at Fluff Fest, though. As I said above, I'm guessing the type from the shape, as I haven't been able to determine 100% that it's a Cherokee. At least one of the planes I spotted at Rokycany airport (I've forgotten in what year), where Fluff Fest was held, had a registration assigned to a Cherokee, though, this is likely it.