Hip-hop star SUPERNATURAL will attempt to break the world record for the longest freestyle rap at this year's Rock The Bells festival in California. The rapper will have to keep going for nearly nine hours if he is to make it into the Guinness Book Of World Records. The record currently stands at eight hours, 45 minutes - set by Toronto rapper D.O. three years ago. Wu-Tang Clan, Mos Def, Talib Kweli and Redman will headline the festival taking place this summer (06).