What Is the Hardest Thing Darren Criss Had to Say on 'Glee?'

Darren Criss has had to do some difficult things on "Glee" as Blaine Anderson. Last night, he took on three songs, including the beloved "Somebody That I Used to Know," and carried the main storyline of the episode along with guest star Matt Bomer.

But according to Criss, none of that, and probably no amount of singing and dancing,  was as difficult as saying a single line from last night's episode:

In tonight's episode, I say one of the most difficult things I've ever had to say on Glee- so keep an ear out... any guesses?

— Darren Criss (@DarrenCriss) April 11, 2012

Well? Any guesses? Some kind of blasphemous statement or offensive phrase? Criss is an avid Michigan fan, did they make him say "Go Buckeyes?"

Nope, but close: Criss had to utter the words, "Screw Optimus Prime," in support of his big brother (played by Bomer) when he failed to get an audition for the next "Transformers" movie. Criss is a self-professed pop culture geek, and many of his fans knew him before "Glee" as the star of "A Very Potter Musical," a YouTube-based musical spoof of the Harry Potter series. Looks like "Transformers" is on Criss' list of faves as well.

Ding ding ding! correct! (hardest thing I've ever had to say on Glee) RT @Jennie Tam @DarrenCriss hmm... "screw optimus prime" probably.

— Darren Criss (@DarrenCriss) April 11, 2012

You can read a full recap of last night's episode here on Yidio. As a bonus, check out Criss and Bomer singing "Somebody That I Used To Know" below: