Tommy Emmanuel is a huge icon of acoustic fingerstyle guitar, easily one of the biggest names in that scene. Of course, he's also a monster guitar player in general and has played a lot of different styles over the years.
Since this is a jazz forum, here he is doing some Dave Brubeck. He starts out with Blue Rondo à la Turk, then goes into Take Five, and finishes with Birth of the Blues:
He's no slouch on the electric either: