The "Grammy Nominations Concert Live!! Countdown to Music's Biggest Night" has added more country star power. Reigning CMA New Artist of the Year Hunter Hayes will perform on the Dec. 5 broadcast, along with a collaboration by the Band Perry and Dierks Bentley in a special tribute to Johnny Cash.

Also on tap for the all-star telecast will be Recording Academy Lifetime Achievement Award recipients the Who, along with previously-announced performers Luke Bryan, Fun., Maroon 5, and Ne-Yo. During the one-hour concert special, hosted by Taylor Swift and LL Cool J, the 2013 Grammy nominations will be announced in several categories.

The "Grammy Nominations Concert Live!! Countdown to Music's Biggest Night" airs Wednesday, Dec. 5 from Nashville's Bridgestone Arena at 10:00 PM ET on CBS. If you're planning to be in Nashville to witness the star-studded event in person, after the special, guests will be treated to a live one-hour concert from Maroon 5. Tickets for "The GRAMMY Nominations Concert Live!! Countdown to Music's Biggest Night" are on sale now online at Ticketmaster (www.ticketmaster.com) or via Ticketmaster charge-by-phone lines at 800-745-3000.

The 55th Annual Grammy Awards will take place at Staples Center in Los Angeles on Feb. 10, 2013, and will air live on CBS at 8:00 PM ET/PT.

Watch a Report on the Grammy Nominations Live Concert