Hall Marks: Keith Urban's fifth annual We're All 4 The Hall benefit concert will be held May 6 at Nashville's Bridgestone Arena. He'll be joined by Vince Gill, Brantley Gilbert, Brett Eldredge, Carrie Underwood, David Nail, Deana Carter, Kacey Musgraves, Kip Moore, Lee Ann Womack, Mary Chapin Carpenter, Reba and Ronnie Milsap in "Songtellers (A Large Intimate Evening)." Each artist will perform a song they've written or a classic and tell a story about it. "This is going to be an extremely unique and revealing night for everyone," Urban says. "Not only are we going to see extraordinary 'one of a kind' performances, but we're going to hear some stories that just may have us hearing these well-known songs in a whole new way." Funds benefit the Country Music Hall of Fame and Museum; tickets go on sale April 4. More here.