Must read: Conan O'Brien, NJ mayor turn facetious feud into comedy

NEWARK, N.J. - Conan O'Brien and Newark Mayor Cory Booker turned their frivolous feud about the gritty city into comedy on NBC's 'Tonight Show' on Friday.

The chatty 40-somethings worked off one another like a comic duo. But the jokes eventually gave way to a plug for Booker's efforts to fashion a national blueprint for urban transformation in Newark, long an icon for urban decay, and a $100,000 donation to his Newark Now charity from O'Brien and NBC.

Booker's appearance on O'Brien's show culminated a facetious feud that began Sept. 23 with O'Brien joking that Booker's new health care program consisted of a bus ticket out of Newark, which is just west of New York City and is often scarred by violence. The mayor responded with a humorous video on YouTube in which he banned O'Brien from Newark Liberty International Airport.

'Many jokes are made about Newark by comedians,' O'Brien said on Friday's show. 'You honed in on me like a cruise missile. Why me, Mayor Booker?'

'When there's a herd going after you, you have to sort of look at the weakest gazelle,' Booker joked.

The 15-minute segment, taped in California, confirmed Booker's newfound status as a national figure in U.S. politics, said Robert Thompson, a Syracuse University professor of television and popular culture.

'They were like Abbott and Costello,' Thompson said. 'Those two could go on the road.'

The symbiotic relationship comes at an ideal time for O'Brien, who took over as 'Tonight' host in June, after Jay Leno's 17 years on the job. The show averages about 2.6 million viewers a night with O'Brien, compared with more than 4.5 million for Leno, and has been trying to attract younger viewers.

Booker already is a darling of that demographic thanks to a new media pedigree that includes 839,000 followers on the Twitter online social network. His first response to O'Brien on the YouTube video file sharing site has been viewed more than 183,000 times.