A slew of stars have been added to the lineup for this year's 'ACM Presents: An All-Star Salute to the Troops' concert.

Dierks Bentley, Lee Brice, Luke Bryan, Hunter Hayes, Toby Keith, Tim McGraw, Kellie Pickler and Keith Urban will all take the stage in Las Vegas to pay tribute to the armed forces.

Already announced performers for the special include George Strait and Merle Haggard, as well as Carrie UnderwoodLady AntebellumFlorida Georgia Line and the Band Perry.

“We are so thankful for the men and women in our armed forces and proud to present this fantastic night of performances in their honor,” says Bob Romeo, CEO of the Academy of Country Music. “The special will be a remarkable moment in Academy history and continues the ‘ACM Presents’ TV specials that have been so successful over the years.”

The concert will be taped on Monday, April 7, the day after the 2014 ACM Awards, and will air as a two-hour special on Tuesday, May 20, at 9PM ET on CBS. Tickets for the taping are still available for purchase.