As if we weren't already excited over the return of 30 Rock...

Entertainment Weekly confirms an especially fun episode of the NBC sitcom on January 26, as Emma Stone, Andy Samberg and Nick Cannon are all booked for cameos and will appear in a movie within the show.

Tina Fey explains:

Jenna will star in “a movie from the producers of Valentine’s Day and New Year’s Eve called Martin Luther King Day. I want to lay claim to that bit before anyone gets it. It’s a movie that has everyone in the world in it," including the aforementioned trio.

The series returns this Thursday with a new episode. We'll be updating our section of 30 Rock quotes each week.