Lambert, Gibbons and Urban will perform ZZ Top's classic song "Tush" live during the ceremony at the MGM Grand Garden Arena in Las Vegas.
Urban will also sing his new single, "Wasted Time."
Among the previously announced performers are Jason Aldean, Kelsea Ballerini featuring Nick Jonas, Dierks Bentley, Luke Bryan, Cam, Kenny Chesney, Eric Church, Brett Eldredge, Sam Hunt, Charles Kelley, Tim McGraw, Dolly Parton with Katy Perry, Thomas Rhett, Blake Shelton, Trombone Shorty, Chris Stapleton, Carrie Underwood, Chris Young with Cassadee Pope, Florida Georgia Line, Little Big Town and Old Dominion.
Presenters include Miss America Betty Cantrell, Tom Hiddleston, Chris Janson, Jana Kramer, Martina McBride, Kip Moore, Kacey Musgraves, Nancy O'Dell, Jake Owen, Chase Rice, Kiefer Sutherland, Cole Swindell and Maddie & Tae.
Luke Bryan and Dierks Bentley are hosting the gala.