The ‘Last Night’ chart-topper also treated fans to a rare performance of ‘Tennessee Numbers’.
They'll be joined by the likes of Bailey Zimmerman, Riley Green, HARDY and Ian Munsick at the July festival.
The ‘All Your'n’ hitmaker will perform in London across February 21 and 22 next year.
Brandi Carlile, Margo Price, The War And Treaty and more are all set to also perform.
The Illinois native has shared three new songs, ‘Black Wolf Blues’, ‘Mind Travel’ and ‘Unoriginal Sin’ with Mike Campbell.
The 21-year-old Appalachian phenomenon Colby T. Helms delivers a timely sermon on getting away from it all and leading a simpler life
