Partial line-up announced (via Mischa-Barton.org)Widespread Panic (2 shows) Dave Matthews Band The Allman Brothers Band Jack Johnson Alison Krauss & Union Station Modest Mouse Gov't Mule Bela Fleck Acoustic Trio The Mars Volta John Prine Yonder Mountain String Band My Morning Jacket Keller Williams STS9 Earl Scruggs & Friends Joss Stone O.A.R. Toots and the Maytals Umphrey's McGee Iron & ...