Sanjaya Malakar, known for his wild hairdos and frequently pitchy singing style, hit a new low tonight on Fox's "American Idol," according to judge Simon Cowell who characterized his performance as the worst ever in the history of the show, now in its sixth season. "That was utterly horrendous," said Cowell. Malakar, 17, known nationally – even internationally – by his first name only, has survived the first several cuts in the program that relies on public voting to eliminate one contestant each week. He has stimulated a national debate, with his own fan base supporting him enthusiastically and others...