Of course, that means Ellen Pompeo will indeed be returning to play her titular role of Meredith Grey, a part she started playing in 2005.
It's become a running joke at this point that Ellen Pompeo has to return every year when they announce the show's renewal, since Shonda Rhimes won't. Let. It. End.
And like Ellen (who has been very open about her desire to finish Grey's), people have a lot of thoughts. Here are 15 of the funniest tweet reactions to Grey's Anatomy's renewal.