Emmylou Harris, Nickel Creek, the Nitty Gritty Dirt Band and the String Cheese Incident are among several top acts featured on Telluride Bluegrass Festival: 30 Years, a CD and DVD celebrating the 30th anniversary of the Colorado festival. The package also includes performances by Sam Bush, Bela Fleck, Hot Rize, Kasey Chambers and the Yonder Mountain String Band. The DVD features concert footage and interviews with artists and fans. The set will be released June 7. This year's festival takes place June 16-19.