NEW YORK (Reuters) - A singer who competed on the second season of “American Idol,” filed a libel lawsuit on Thursday against MTV Networks for more than $40 million, claiming he was unfairly ridiculed by one of its news reporters. The lawsuit claims that after Corey Clark was disqualified from “American Idol,” having reached its “Top 10” finalists, MTV News correspondent Jim Cantiello falsely attacked Clark as a liar and called for a boycott of his music. Clark was disqualified on March 31, 2003, after “Idol” officials learned he had faced three misdemeanour charges, including one battery charge involving his sister. He was later acquitted of two of the three charges and pleaded guilty to obstruction of justice, the lawsuit said.