Joining the hallowed ranks of Matt Damon, Jennifer Aniston, Oprah Winfrey, Jon Hamm, Julianne Moore, Steve Martin, Edie Falco, Susan Sarandon and Carrie Fisher, another very famous face is going to guest star on an upcoming episode of 30 Rock.
Hint: This performer has played a variety of comedic and dramatic roles, directed and produced movies and miniseries and hosted Saturday Night Live eight times!
So it's not Meryl Streep, but have you figured out who it is yet?
It's Tom Hanks!
The actor tweeted: "RadioMan delivers msg from T.Fey. Result? I'm on 30 Rock! Thanks, RMan Hanx"
We don't know any deets on his character yet, but with a background that includes Oscar-winning dramatics and Bosom Buddies sitcom-riffic crossdressing, we have no doubt he'll be awesome.