NBC's "Opry 100: A Live Celebration" will feature a star-studded lineup of performers, including Post Malone, Keith Urban, and Alan Jackson, to mark the 100th anniversary of Nashville's Grand Ole Opry. The three-hour special will also include appearances by Opry members such as Bill Anderson and Sara Evans, with Blake Shelton hosting the show from the Opry House. The broadcast, scheduled for March 19, will showcase a mix of country music legends and rising stars, with more performers yet to be announced. Tickets for the live event are available at opry.com, and the show will be simulcast on Peacock.