Jason Aldean, Ronnie Dunn, Sara Evans, Alan Jackson, Jake Owen and Kellie Pickler have joined the list of presenters at the CMT Music Awards. The event will air live tomorrow on CMT and CMT.com. Luke Bryan, The Band Perry and Carrie Underwood will also serve as presenters in addition to performing on the show. CMT hosts Tom Arnold and Steve Austin will also present awards, as will “American Idol” contestants Colton Dixon and Skylar Laine. Other presenters include 2012 Indianapolis 500 winner Dario Franchitti, “Twilight” star Ashley Greene, pro skateboarder Tony Hawk, Denise Richards, Dax Shepard and Jordin Sparks. Toby Keith and Kristen Bell will co-host the show.