Van Cliburn Summer Orchestra
From "The Bluegrass is Always Greener" episode of animated show King of the Hill (24 Feb. 2002).
Pre-teen violin prodigy Kahn "Kahnie" Souphanousinphone (voiced by Lauren Tom), takes a break from her tedious classical exercises to jam in the alley with Hank Hill's (voiced by Mike Judge) acoustic guitar playing on some bluegrass tunes. It's so fun, Hank's beer swilling buddies join up and they form The Dale Gribble Bluegrass Experience.
Kahnie ditches her Fort Worth audition for the boring ole Van Cliburn Summer Orchestra to hit the road with Hank and Co. Van Cliburn (1934-2013) is a real, internationally renowned classical pianist. In the King of the Hill universe, he apparently has some kind of teaching orchestra.