If you all would pay attention to Weird Al's site. There is a space where he answers peoples questions. And this is on of them:
"Unfortunately, there are many "funny" songs floating around the Internet being attributed to me which are, in fact, NOT by me. "Barney's On Fire," "I Ran Over The Taco Bell Dog," "Weenie In A Bottle," "I'm A Wigga," "The Beer Song," "The Devil Went Down To Jamaica," "Elmo's Got A Gun," "Which Backstreet Boy Is Gay," "What If God Smoked Cannabis" (the list goes on and on)... these are NOT my songs. All of my material is fairly family-friendly, so if you hear one of "my" songs and the lyrics are vulgar or obscene... well, that's an excellent clue that it's not really one of my songs. Hope I've cleared that up. Oh, while you're at it... stop stealing my stuff off the Internet, you hooligan! "