1596 1596 ekaeJN9Sgu0 Will & Grace Cast Performs Their Theme Song with Lyrics The Tonight Show Starring Jimmy Fallon 23 |adler|cast|celebrities|clip|comedic|comedy|debra|eric|fallon|funny|grace|hayes|highlight|humor|interview|jack|jimmy|jokes|karen|lgbt|mccormack|mcfarland|megan|messing|monologue...