John Driskell Hopkins (Hop) (born May 3, 1971) is best known for his role as a founding member, vocalist, multi-instrumentalist and songwriter for the Grammy Award Winning group Zac Brown Band. Hopkins co-wrote, with Zac Brown, Wyatt Durette and Shawn Mullins, the Zac Brown Band's third single: "Toes" from their 2008 major-label debut The Foundation. It was the second number one single for the band.