Xuxa makes a cameo appearance on Krusty's 1995 Christmas Special "It's a Krusty Kinda Khristmas", Simpsons Season 7, episode #3F07 Marge Be Not Proud, original air date, December 17, 1995. Of course Krusty, like a lot of Americanos Nortes, can't wrap his tongue around four simple letters.

Announcer: It's a Krusty Kinda Khristmas, brought to you by ILG: selling
           your body's chemicals after you die.  And by Li'l Sweetheart
           Cupcakes -- a subsidiary of ILG.
   Krusty: [walking in with a turkey] Oh, hi!  I didn't hear you come
           in.  Welcome to my home.
            [outside the "window", Kent Brockman prepares for a newscast]
           Ho, ho.  [closing the blind] Say, did I hear some carolers?
            [walks over to door, opens it]
 Carolers: Come, they told me...
   Krusty: Hey!  It's respected private citizen Tom Landry!  
           And South American sensation Xoxchisha -- Xoxchoshe -- Xox -- oh, boy.
            [walks away]
Episode quote blatantly copy-pasted with intense gratitude from www.snpp.com.