It's a reference from the movie Shrek. The villain is torturing the Gingerbread Man, who ends up spilling the beans on the Muffin Man ("who lives on Drury Lane"). Have to see the movie to get the full effect. :)
Now this sounds like a great movie! I'm going to rush right out with my kids to see this!
Sorry, I knew that. I was giving you the next line...
"Do you know the Muffin Man?"
"The Muffin Man?"
"The Muffin Man."
"Do you know the Muffin Man?"
"Who lives on Drury Lane?"