Los Angeles Celebrities for the sake of charity but ''Rush Hour'' star Chris Rock did the unthinkable, he indulged in a cursing brawl with a fan to raise money for a good cause. During the concert chris call to someone''s ex and curse him/her for dumping the person with the highest bid. Desiree young woman has won the bid and got on stage and asked Chris to curse out her ex-boyfriend, Desiree were still together. Once the call was connected, for about three minutes straight ''The Longest Yard'' star launched a expletive filled tirade at Jeff, who happens to be his fan. At the concert which was held to raise money for education programs for autistic children and adults, were Stephen Colbert, Jimmy Fallon, Joel McHale and Sarah Silverman.