Willie Nelson (loved 'em all, even outdoors in the wintertime...)
Neil Diamond
Robert Cray, when he was just a kid
Ray Price
Kansas Heart
Buster Jenkins
Frankie McWhorter, many times
The Martinez family at Arnett OK Veteran's Hall, with my mom
The David Munnely Band
"That'll Buy the Tires for the Bus," at many neighborhood jams
Several groups at the Fifth Sunday Singings in my home town.

Just what's off the top of my head, and all way too much fun.

Lin