I had forgotten about the existence of Sophie B. Hawkins. When you listen to the chorus of As I Lay Me Down it sounds like the background singers are saying "I love Tacos." And once you hear it, you can't unhear it.
Yep. Specifically, Seth MacFarlane won't voice any of his characters -- which means they'd have to try to do the show without half the cast. http://www.variety.com/article/VR1117975542.html?