Kelsey Grammer: Camille Grammer And I Didn't Have 'Sex For A Decade' (VIDEO)

Kelsey Grammer can't seem to put a lid on it.

On Monday, he stopped by "Conan" and addressed rumors that he slept with his now-wife Kayte Walsh the night they met -- six months before he split from ex-wife Camille Grammer. The "Boss" actor told Conan that, actually, he and Walsh "didn't do much more than kiss for several months."

When Conan commented on how difficult that must have been, Grammer said, "Well for a guy who hadn't had sex for a decade, it wasn't that hard."

This isn't the first time Grammer has made a public dig at his ex. Last month, in an episode of "Oprah's Next Chapter," he told Oprah Winfrey he felt that he "owed" Camille fame. And last year, in an interview with the Australian morning show "Sunrise," he said that his ex's reality TV career on "The Real Housewives of Beverly Hills" was his "parting gift to her."

The former couple, who have two children together, finalized their divorce in February 2011 after 13 years of marriage. Just two weeks later, Kelsey married his fourth wife, Walsh. The couple welcomed daughter Faith, their first child together, in July.

UPDATE: Camille Grammer shot down Grammer's remarks on Tuesday. “He lied on Conan,” she told Huffington Post's Rob Shuter. “He really needs to move on.”

Grammer is hardly the first celebrity to talk about his ex publicly. Click through the slideshow below for 10 others, then weigh in: Should Grammer ditch his loose-lipped ways?