Will Smith’s lawyers say a judge should throw out a “farce of a lawsuit” brought by an electric violinist who performed on the star’s *Based on a True Story* tour last year. The ## Feb. 20 motion, obtained by *Billboard*, is Smith’s first court filing responding to sexual harassment and retaliation claims leveled against him by violinist Brian King Joseph in December. King, who came in third place on season 13 of *America’s Got Talent*, says he was wrongly fired from Smith’s international tour after complaining that somebody had broken into his hotel room and left sexually suggestive materials. “Brian King Joseph is using the California court system to maliciously ensnare [Will Smith] in a frivolous lawsuit,” reads the motion, filed by Smith’s attorneys at the firm Gordon Rees Scully Mansukhani.…