 " A Chorus Lie " is the sixteenth episode of the American television series Will & Grace 's fourth season . It was written by Tracy Poust and Jon Kinnally and directed by series producer James Burrows . The episode originally aired on NBC in the United States on February 7 , 2002 . Guest stars in " A Chorus Lie " include Matt Damon , Leslie Jordan , Patrick Kerr and real life members of the Gay Men 's Chorus of Los Angeles . 
