Firefly festival includes The Weeknd, Twenty One Pilots, Dylan

Firefly festival includes The Weeknd, Twenty One Pilots, Dylan The Dover, Del., music festival will have five headliners over four days in June. Check out this story on USATODAY.com: http://usat.ly/2jEVZ2I Recording artist The Weeknd performs onstage during the 2016 American Music Awards at Microsoft Theater on Nov. 20, 2016 in Los Angeles.