Today, they've announced another installment in their series, titled Sing Me Back Home: The Music Of Merle Haggard, bringing dozens of artists together for the cause.
When Merle Haggard died a year ago, one of the defining voices of country music in the 20th century went quiet.
"The Music of Merle Haggard" will take place on April 6, which would have been the singer's 80th birthday.
"The Music of Merle Haggard" will come to life April 6 on the stage of Nashville's Bridgestone Arena.
Additional performers include Loretta Lynn, Hank Williams Jr., The Avett Brothers, Alison Krauss, Dierks Bentley, Ronnie Dunn, Warren Haynes, Jamey Johnson, Kacey Musgraves, Lynyrd Skynyrd, Lucinda Williams, Ben Haggard, John Anderson, Connie Smith and Bobby Bare. Don Was, Buddy Cannon and Ben Haggard will serve as music directors and preside over a house band backing the performers. He wrote and recorded such country classics as 1966's "The Bottle Let Me Down", 1968's "Mama Tried" and 1969's "Okie From Muskogee".
Haggard, one the architects of the Bakersfield Sound and an inductee into the Country Music Hall of Fame and Museum in 1994, was revered for his way with a lyric.
Keith Wortman, Mark Rothbaum and Theresa Haggard are the creators and executive producers of the show. A portion of the proceeds will benefit the T.J. Martell Foundation.
A tribute, the "Biggest Hony Tonk on Broadway", has been set for the legendary Merle Haggard. "It's going to be an unforgettable evening".