S5, E10: After a displaced Karen (Megan Mullally) is booted from her Palace Hotel digs, a sympathetic Will (Eric McCormack) agrees to let her move in with him - at least until she turns his apartment into a federal disaster zone with her exorbitant lifestyle, forcing Will to try and unload her onto Grace's (Debra Messing) shoulders. Meanwhile, Jack (Sean Hayes) loses style points when he poses incognito out of fear that the "Gay Mafia" has it out for him. Grammy-winning superstar Elton John plays himself as an omniscient "Gay Mafia" figurehead.