Artist such as the Dixie Chicks, Tim McGraw, Clint Black, Lee Ann Womack, Merle Haggard, Reba McEntire and Dwight Yoakam have been confirmed to guest sing on the second volume of a Bob Wills tribute album that's set for a July release. Duets will also appear on the project, featuring Steve Wariner with Vince Gill, Willie Nelson with the Manhattan Transfer and Lyle Lovett with Shawn Colvin.