Encino, CA (March 14, 2013) – The Academy of Country Music and dick clark productions announced today that Country Superstars Dierks Bentley, Keith Urban and Lady Antebellum, along with International Music Sensation Pitbull have been added to the all-star lineup of artists scheduled to perform at the ACM PRESENTS: TIM McGRAW’S SUPERSTAR SUMMER NIGHT, taping Monday, April 8, 2013 at the MGM Grand Garden Arena in Las Vegas. These artists join previously announced performers Jason Aldean, Luke Bryan, Taylor Swift and Ne-Yo. The special will be broadcast at a later date on the CBS Television Network.