Zac Brown Band are not only one of the most commercially successful groups in country music, they're one of the most critically respected. Merging Zac Brown's background in classical guitar with his interest in bluegrass, folk singer-songwriters and country, and combining that with the instrumental and vocal prowess of the other band members, the group have created a unique sound unlike any other act in contemporary country music. The group self-released their early work and toured steadily to build a dedicated following, and as a result their first major-label album, 2008's 'The Foundation,' was a runaway success, scoring four No. 1 singles with 'Toes,' 'Chicken Fried,' 'Highway 20 Ride' and 'Free.' 2010's 'You Get What You Give' scored four more No. 1 hits, including 'As She's Walking Away,' which featured Alan Jackson, and 'Colder Weather.' In 2012 the 'Uncaged' album scored with 'Goodbye in Her Eyes' and 'Sweet Annie,' and the band followed up in 2013 with an EP, 'The Grohl Sessions, Volume 1,' produced by Foo Fighters' Dave Grohl. The project saw the group continuing to expand their unique style, and in recent years Zac Brown Band have become one of country's largest concert draws, expanding into arenas and stadium gigs.