A very good friend of mine from my time in Prauge is the fella on the right in the flatcap and guitar. He's currently in one of, if not the, biggest bluegrass bands in South Korea.
httpv://youtu.be/2PMbwEe7t2I
Unfortunately, this is the best quality video on youtube. If you like what you heard, here's their Facebook page
I didn't care for this particular clip, but at least one on the FB page was pretty good.
Yeah, unfortunately, there aren't many decent vids on them on YT