The nominees for the fifteenth annual Americana Honors & Awards were announced in Washington, DC last night. Among them, Jason Isbell, who notched three nominations for his latest Something More Than Free including Album, Artist and Song of the Year.

Isbell is joined by Lucinda Williams, Parker Millsap and newcomer Chris Stapleton in Album of the Year category as well as Bonnie Raitt, Stapleton and Williams in the Artist of the Year category.

Alabama Shakes, Tedeschi Trucks Band, Milk Carton Kids, Lake Street Dive, Emmylou Harris & Rodney Crowell highlight the Group Duo of the Year category. Meanwhile, Leon Bridges and Nathaniel Rateliff & the Night Sweats earned nominations for Emerging Artist.

Other notables include Jason Isbell’s “24 Frames” and Rateliff’s hit “S.O.B.” up for Song of the Year and Sara Watkins included in the Instrumentalist of the Year category.

The Americana Honors & Awards will be held September 21 at Nashville’s Ryman Auditorium.