Zac Brown Band is an American country/rock band based in Atlanta, Georgia. The lineup consists of Zachary Alexander "Zac" Brown (lead vocals, guitar), Jimmy De Martini (fiddle, vocals), John Driskell Hopkins (bass guitar, guitar, baritone guitar, banjo, ukulele, upright bass, vocals), Coy Bowles (guitar, keyboards), Chris Fryar (drums), Clay Cook (guitar, keyboards, mandolin, steel guitar, vocals), Matt Mangano (bass guitar), and Daniel de los Reyes (percussion). The band has released seven studio albums along with two live albums, one greatest-hits album, and two extended plays. They have also 16 singles on the Billboard Hot Country Songs or Country Airplay chart, of which 13 have reached number 1. Their first album, The Foundation, is certified triple-platinum by the Recording Industry Association of America, while its follow-ups, You Get What You Give and Uncaged, are certified platinum. Artists with whom they have collaborated include Alan Jackson, Jimmy Buffett, Kid Rock, Jason Mraz, Dave Grohl, Chris Cornell and Avicii.