It's "The Simpsons" season finale airing May 20th, with special guest Lady Gaga.

Lady Gaga comes to Springfield to see Lisa and cheer her up.  A while back, Gaga said that doing the Simpsons cameo was "one of the coolest things she's ever done."

Fox has posted a promo for the episode, and in it Lady Gaga is shown in multiple outfits including that infamous meat dress, which Homer tries to cook and eat. Check It Out.