Rollicking performance of the ‘Hard Headed Woman’ tune could be the show’s last musical guest appearance

The two stellar songsmiths debuted their first country single on ‘Fallon’ and released it to streaming

Watch the roots-music champion and her band rip on a tune from her forthcoming ‘Trail of Flowers’ on ‘Kimmel’

Tuesday’s broadcast featured two tunes from Sophie Allison & Co.’s latest, Sometimes, Forever