Rapper Chiddy, of hip-hop veterans Chiddy Bang, will reportedly appear on the MTV O Awards and attempt to break a pair of rap-related Guiness World Records.  In Chiddy's sights are the marks for Longest Freestyle Rap and Longest Marathon Rapping.  Chiddy will rap for nine straight hours aruond the O Awards, which will be the first online awards show ever.  Chiddy's record-breaking attempt is scheduled to begin Thusday, April 28th at 8:30 AM ET and can be followed at OMusicAwards.com.  Fans can also follow Chiddy's progress by following the Twitter hastag #RapWorldRecord.