Zac Brown Band is an American country music band based in Atlanta, Georgia, on the Southern Ground Artists label. The lineup consists of Zachry Alexander "Zac" Brown (born August 1, 1978) (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 four studio albums, three of which have been in collaboration with Atlantic Records, along with two live albums, one greatest hits album, and two extended plays. They have also charted sixteen singles on the Billboard country singles charts, of which twelve have reached number 1: "Chicken Fried", "Toes", "Highway 20 Ride", "Free", "As She's Walking Away", "Colder Weather", "Knee Deep", "Keep Me in Mind", "Goodbye in Her Eyes", "Sweet Annie", "Homegrown", and "Loving You Easy". Their first Atlantic 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 (Opened at No.1 with 234,000 sales), are certified platinum. Artists with whom they have collaborated include Alan Jackson, Jimmy Buffett, Kid Rock, Amos Lee, String Cheese Incident, Trombone Shorty, Joey + Rory, Jason Mraz, Dave Grohl, Chris Cornell and Avicii.