10/14/2011 09:13 am ET Updated Dec 06, 2017

Bill O'Reilly, David Letterman High Five Over Iraq War (VIDEO)

Bill O'Reilly went on David Letterman's show Thursday and gave audiences the most tame Letterman-O'Reilly exchange to date. O'Reilly has been on Letterman's show in the past and clashed, however Thursday marked a momentous occasion for the two television hosts: a visible display of camaraderie.

O'Reilly's previous appearances on 'Late Night' included Letterman calling him a "goon" in 2009 and telling him that "about 60 percent of what you say is crap" in 2006 . O'Reilly and Letterman discussed a range of topics on Thursday including Occupy Wall Street and the Tea Party.

O'Reilly told Letterman he made an "excellent point" after his analysis of Occupy Wall Street. Letterman politely thanked him for paying him the compliment.

Letterman then initiated a celebratory high five with O'Reilly after the latter said that the war in Iraq "should not have happened in hindsight." Letterman and O'Reilly agreed that it turned out Iraq did not possess weapons of mass destruction which prompted Letterman to leap out of his chair with his hand raised high in the air.

"Up high! Come on, up high....come on, Billy! Come on! Come on!" Letterman taunted O'Reilly, who remained in his chair shaking his head.

After more pleading, Letterman warned, "I'll give you one more chance, Bill."

"I'm not high-fiving you on a war!" O'Reilly said.

"We're feeling good, we're happy to see each other!" Letterman responded.

"We're having a good conversation, sit down." O'Reilly said. Letterman did not look so enthused with this and O'Reilly gave in. He stood up, towered over Letterman, and did the deed.