Darryl Worley will sing the national anthem prior to the Busch series' Sam's Town 300 on Saturday (March 10) in Las Vegas. The race will be broadcast by ABC at 2:30 p.m. ET. Worley will also be playing at Fremont Street Experience's Race Jam on Saturday night. In other news, Worley will serve as a judge, along with actress/model Ali Landry and Kelli Finglass, director of the Dallas Cowboys Cheerleaders, on an upcoming episode of CMT's Karaoke-Dokey.