An attempt by organisers of the '97 Spectacular to set a world record for a karaoke sing-along flopped last night when few spectators bothered to pay lip service. More than 800,000 people showed up in Tsim Sha Tsui and another 100,000 watched the hour-long extravaganza on Hong Kong Island but few sang along to songs played on the radio. 'I know people are supposed to be crazy about karaoke but I think there is a limit,' said office clerk Jennifer Wong Kwok-mei, 25. The organisers had hoped one to two million people would sing along in order to make it into The Guinness Book of Records as the world's biggest mass sing-along. But a Guinness spokesman said there was no category for karaoke. A spokesman for the organisers offered no comment on the flop.