"The final track listing for Celebration is not out there yet and "won't be available until much closer to the release," I have confirmed from a source so powerful she could drop any Madonna fan should she so choose."
-- Matthew Rettenmund, Boy Culture

So you fans of "Live to Tell" and "Who's That Girl" hold on--we're still not confirmed.

As for the source, I'm gonna go with Liz Rosenberg as my guess.