(CNN) - Newt Gingrich defended on Friday a now-viral campaign ad mocking GOP presidential rival Mitt Romney over his French language skills.
"Nothing is wrong with it. Let me quote Herman Cain: Sometimes it's good to have a sense of humor," the former House speaker said on CNN's "Erin Burnett OutFront."
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Cain, who ended his presidential bid in December, frequently said America needed to lighten up after he was pressed over controversial comments and web videos put out by his campaign.
The Gingrich video at issue surfaced online Thursday and shows footage of Romney speaking French, a language he learned while living in France as a Mormon missionary during his college years.
The video, titled "The French Connection," also poked fun at another Massachusetts politician and former White House hopeful, Democratic Sen. John Kerry, for his use of the language. Republicans targeted Kerry in his presidential campaign for being "too French" at a time with notable anti-French sentiment.
Since its release Thursday, the video has made waves and collected more than 1,200 "dislikes" on YouTube, compared to only 233 "likes" as of Friday night.
But Gingrich, who has a PhD in European history, said Thursday the video was all in good fun.
"That particular ad has gone viral, because it's funny. It wasn't anti-French. We happen to have a clip of Kerry speaking French,” Gingrich said, adding that he was simply trying to show that Massachusetts politicians tend to be "similar."
"Don't over-think it," he said. "This was supposed to be like 'The Tonight Show,' not some PBS documentary."