Darius Rucker duets with Late Night's Jimmy Fallon on "I Don't Care."
LeAnn Rimes uses jewelry to follow a marriage tradition.
Dierks Bentley aims to get back on the radio with upcoming album.
Mumford & Sons chug along with movie stars on railroad tour.
Naomi Judd reveals a history of abuse in Judds' TV series.
Steve Earle sings his newest "songs for nerds" on NPR.