Uh, Why Was Tina Fey Not On Jay Leno Tonight?

Tina Fey was supposed to be a guest on Leno tonight. She wasn't. Was all this just a ploy to increase Leno's ratings in the lucrative Men, 13-34 "has good taste in comedy" demographic? He could use it.

Or maybe it was delayed retribution for this hilarious spot promoting Conan's move to the Tonight Show?

Either way: We missed you, Tina.