Robert Plant and Alison Krauss have been announced as headliners at the Austin City Limits Music Festival scheduled for Sept. 26-28 in Austin, Texas. Other artists on the bill include the Foo Fighters, Beck, Manu Chao, John Fogerty, Neko Case, Robert Earl Keen, Patty Griffin, Gillian Welch, the Eli Young Band, Kevin Fowler, Yonder Mountain String Band, Shooter Jennings, Asleep at the Wheel, Ryan Bingham, Band of Heathens, Sunny Sweeney and dozens more. Three-day passes are currently available for $170.