It's no small feat to perform a 12-hour set, yet that's exactly what award-winning DJ Tiësto does. What else would you expect from a DJ who formed his own record label, remixed tracks by Lady Gaga, Katy Perry, Coldplay and countless others, was voted The Greatest DJ of All Time by Mixmag and won a 2014 Grammy Award for his remix of "All of Me" by John Legend. That only scratches the surface of Tiësto's achievements. The Dutch DJ is a legend whose name is synonymous with the genre and whose crowning glories extend far beyond the dance floor. In 2004, he released Parade of the Athletes, a mix he performed live at that year's Summer Olympic Games. Not only was Tiësto the first DJ to play the event, he was also the first to put on a solo stadium show. As active a philanthropist as a musician, he was the ambassador for Dance4Life in support of HIV/AIDS awareness. The proceeds of his album Dance (RED) Save Liveswent to AIDS research.