Charlie Daniels (1936 to 2020). The Devil Went Down to Georgia brought fiddle contests to the pop charts, even if no real contest works that way.
Why this player is listed
Charlie Daniels appears in the Play Bluegrass guide to notable fiddle players, which collects contest champions, bluegrass fiddlers, Canadian fiddlers, judges, and departed legends tied to the tradition.
More fiddle context
For the larger list, start with the big list of fiddle players. For the style itself, read the guide to bluegrass fiddle.