WATCH: Clint Eastwood gives rambling speech to empty chair at RNC

Clint Eastwood, the secret guest at Thursday's closing night of the Republican convention, surprised everyone with a head-scratching, ad libbed speech in which he pretended to talk to and make fun of an invisible President Obama on the stage.

In an eleven-minute speech, Eastwood bashed Obama for everything from failing to turn the economy around to proposing that terror suspects be tried in civilian courts in New York City. Eastwood, at times mumbling and fumbling over his words, held a mock conversation with Obama as represented by an empty chair on the stage with him, even pretending that the nonexistent Obama was telling him to shut up.

"I've got Mr. Obama sitting here," he said, motioning to the chair. "And he's, uh, I, I was just gonna ask him a couple of questions."

The questions, however, did not go so smoothly.

"So Mr. President, how do you, uh, how do you handle, uh, how do you handle promises that you made when you were running for election?" Eastwood said to the empty chair. "And how do you handle it, uh, how do you handle it, I mean, what do you say to people?"

Eastwood also offered an incredibly weak endorsement of the Romney alternative to Obama's economic policies.

"[The high unemployment] is something to cry for because that is a disgrace, a national disgrace," he said. "And we haven't done enough, obviously this administration hasn't done enough to cure that. And whatever interest they have is not strong enough."

"I think, possibly, now it may be time for somebody else to come along and solve the problem," he concluded.

After the speech, the Romney campaign confirmed to CBS that Eastwood was, "ad libbing."

Watch the whole, confusing thing below: