An all-star cast of performers will hit the stage to pay tribute to country icon Willie Nelson at Nashville’s Bridgestone Arena on Jan. 12. The tribute concert—Willie: Life & Songs of an American Outlaw—will feature performances by Alison Krauss, The Avett Brothers, George Strait, Jack Johnson, John Mellencamp, Kris Kristofferson, Lee Ann Womack, Lyle Lovett,…