Nashville veteran Deacon (Charles Esten) and upstart country-pop star Juliette (Hayden Panettiere) record a duet in a scene from ABC's Nashville. Katherine Bomboy-Thornton/ABC hide caption

itoggle caption Katherine Bomboy-Thornton/ABC

Mumford & Sons is led by singer Marcus Mumford (second from left). The band's second album, Babel, was released on Sept. 25 and is on pace to be the highest-selling debut of 2012. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Bob Dylan performs on stage during the 21st edition of the Vieilles Charrues music festival on July 22, in Carhaix-Plouguer, western France. Fred Tanneau/AFP/Getty Images hide caption

itoggle caption Fred Tanneau/AFP/Getty Images