Sorry sheriff, the boys is all keyed up.
I kinda favor mandolin and dobro stuff, FWIW.
Alison Krauss, Lonesome River Band, Del McCoury, Jerry Douglas, Ricky Skaggs, Infamous Stringdusters.
Steve Martin does some extraordinary stuff -- not sure I'd call what I've heard bluegrass though. I'm not generally a big banjo fan, but a song caught my ear on the radio one day. Turned out it was Steve doing 'The Great Remember'. Check that out on iTunes and see what you think. Ended up getting that album and his next. Haven't heard much of the new one with Edie Brickell.