I'VE got the REAL scoop on why Monica Lewinsky backed out of an appearance on the hot new Fox morning show, Good Day Live. Bill Clinton's former squeeze was all set to promote her new Fox show Mr. Personality, but the day before her scheduled visit, Live hosts Steve Edwards and Jillian Barberie took some biting potshots at her. Steve mused: "Why IS Monica Lewinsky so famous?" And Jillian joked: "She's famous because she SERVICED the president of the United States!" Monica, 29, happened to be watching and became outraged. She abruptly canceled her appearance, with the flimsy excuse that she couldn't be up and ready by 9 a.m. -- it was too early. The next day, outspoken Jillian blasted Monica on the air: "If you're gonna have your own show, you need to get up and promote it! I plugged your handbag line -- the least you could do is show up!" Easy, ladies. Star