By the time Clint Eastwood took the stage at the Republican National Convention, his appearance was no mystery. What was a mystery was whom Eastwood was speaking to. In his speech, the Oscar-winner directed his words to an empty chair, as if it were President Obama.

Now Invisible Obama is already an account on Twitter with over 27-thousand followers. And many Hollywood stars are reacting to Eastwood’s words on their own accounts. Read below for what they had to say.

Bob Newhart: I heard that Clint Eastwood was channeling me at the RNC. My lawyers and I are drafting our lawsuit… #RNC #ClintEastwood #rnc2012

Adam Levine: Clint Eastwood has gone f–kin nutterbutters yo.

Mia Farrow: Right. But what WAS that thing Clint Eastwood just did? How could they let it happen?? #invisibleObama #talkingtoachair

Holly Robinson Peete: Clint Eastwood speech was surreal to me… What did you think?? #RNC

Bill Maher: Wow. Who knew Clint Eastwood was such a down the line rightwing a–hole?

Jason Biggs: Clint Eastwood talking to a non-responsive stool sorta sums up Christianity in a nutshell, huh Republicans? #RNC

Tom Brokaw: Clint Eastwood became huge star as a man of few words As a surprise guest on the Tampa stage he had too many words (I say as a friend)

George Takei: Clint Eastwood’s RNC speech was to imaginary Obama in an empty chair. I’m drafting a DNC speech to imaginary Romney in an empty factory.

Blake Shelton: I. Love. Clint Eastwood.

Zachary Quinto: is clint eastwood meant to instill confidence in republicans?! i am legitimately scared of his talking to imaginary obama.

Patton Oswalt: I literally just landed in Washington D.C. I’m hearing…wait…Clint Eastwood turned the president invisible? Or into a chair? What?

Roger Ebert: Clint, my hero, is coming across as sad and pathetic. He didn’t need to do this to himself. It’s unworthy of him.

Adam McKay: #ClintEastwood I’m twitter-less after that. Wow.

Seth Meyers: Respect to Clint. 82 years old and putting Twitter over capacity.

Roseanne Barr: clint eastwood is CRAY

Charlie Daniels: Clint Eastwood made my day.

Chris Kattan: #ClintEastwood may be old. But he’s still #awesome.

The president’s official Twitter even got in on the action, posting, “This seat’s taken,” with a photo of Obama in a chair.

After Eastwood’s oratory, the Romney campaign issued a statement, USA Today reports. “Judging an American icon like Clint Eastwood through a typical political lens doesn’t work. His ad libbing was a break from all the political speeches, and the crowd enjoyed it.”

*Update: We originally included a tweet incorrectly attributed to Chris Rock.