The seven-song '29' is the result of her new songwriting partnership with Shane McAnally and Josh Osborne.
Notable songwriters Lucie Silvas, Erin Enderlin, Shane McAnally, and Josh Osborne are among those taking part.
The single juxtaposes Hunt's modern, hip-hop-influenced sound with Webb Pierce's 1953 country staple 'There Stands The Glass.'
'Let It Roll' is due for release on 23 August as the follow-up to their successful 2017 debut set 'On The Rocks.'
The quartet will launch the song as they open the 2018 CMT Music Awards, which they're also hosting.