Basically, as a symbolic gesture, the guys march around barefoot for photo ops to raise awareness.

On a tour stop in Falls Church, Virginia, yesterday, they invited fans to go for a stroll with them. But when a camera man asked middle Hanson bro Taylor to sing a few lines from the trio's 1997 hit "MMMBop," he gave the guy a special one-finger wave.

Keep it classy, T! Hopefully this isn't a sign of what can be expected once the Jonas Brothers are washed up get older.

That'd be such a shame, since those three are taking such a high road currently.