Strait, Swift, Lady A, Paisley join Brooks & Dunn tribute show

They join previously announced performers Kenny Chesney, Rascal Flatts, Reba McEntire, Carrie Underwood and Keith Urban.

Kix Brooks and Ronnie Dunn of Brooks & Dunn, the best selling duo in the history of country music, will receive the Academy of Country Music's Milestone Award in recognition of their 20-year record-breaking career during the tribute concert special. They will be honored for holding the record for the most wins of any artist in the academy's history with 26 awards in total, including 3 Entertainer of the Year awards. They will also be honored for holding the record for most Top Vocal Duo wins, with 15 awards, 8 of which are consecutive from 2000-2007.

Brooks & Dunn have had 23 number 1 hits, sold more than 30 million records and won more than 80 major industry awards during their career. In August 2009, they announced they will retire as a duo in 2010 and embark on a final farewell tour this summer, called "The Last Rodeo."

The concert is at the MGM Grand Garden Arena in Las Vegas. The show will air Sunday, May 23 on CBS.

Tickets are still available to the public for this event for $150 and $100 through Ticketmaster.com. Proceeds of all sales benefit ACM Lifting Lives, the charitable arm of the Academy of Country Music, which works to improve lives through music.