Affinity Sports Marketing today announced that on May 17th, 13 year-old Grapevine native Daniel Johnson beat the Guinness World Record for high score on a single song for Guitar Hero III when he attended the Guitar Hero 24-Hour Marathon. Daniel played on Xbox 360 and scored 890,971, beating the previous record by more than 10,000 points while playing Through the Fire and Flames by Dragonforce at the Expert Level.