Watching Pee Wee's Christmas special is still hilarious 13 years later (sorry about the recent raid of your "vintage erotica" by the L.A. police (or was that the FBI?) - anyway, I went scrambling for Charo's version of Feliz Navidad, but could only find these two poor, but good in their own right, substitutes -

Feliz Navidad (is that the music from Public Image mixed in?)
Feliz Navidad