LADY GAGA will guest star on the season finale of "The Simpsons" on May 20th. 

--In the episode, Lady Gaga comes to Springfield to "cheer up a dejected and depressed Lisa."  A while back, Gaga said the cameo was "one of the coolest things she's ever done."

--Fox released a 20-second promo for the episode, and in it Lady Gaga is shown in FOUR different ridiculous costumes, including her infamous meat dress, which Homer tries to cook and eat.