Song appears on the artist's new tribute album to Haggard, 'Best Troubadour'
Miranda Lambert, Dierks Bentley and John Mellencamp also set to sing Hag songs at April 6th event in Nashville
Janson faithfully renders the Hag's ballad, which originally appeared on 1981's 'Big City' album
In an unearthed, intimate 2007 interview, the "Branded Man" singer-songwriter recalled his friendship with Cash and his time behind bars
Merle Haggard and Joey Feek were among the country-music personalities who died in 2016
Guitarslingers played Merle Haggard's "Workin' Man Blues" in 2010 in honor of the country legend
Singer nods to a major influence with "There Won't Be Another Now" cover from 'Tradition Lives'
Country legend helped develop recreational sativa strain Merle's Girls before his death
"Everybody in this town is very much aware of the contribution [Haggard] had to this business," says the reigning ACM Entertainer of the Year
Singers trade verses on a sizzling version of "Workin' Man's Blues" at the 2014 CMT Artists of the Year event
Singer unleashes epic Facebook tirade against the country-music organization, Music Row and those who "hitch their wagon to [Haggard's] name"
Merle Haggard Spirit Award, named after the late country-music legend, recognizes "uncompromising artists"
Keith's six-song medley of Haggard hits includes "Mama Tried" and "Silver Wings"
Lauded musician wrote several Merle Haggard chart-toppers and co-produced Willie Nelson's 'Somewhere Over the Rainbow'
Out May 12th, the haunting track was recorded two months before his death