It looks like Katie Couric got comedian ​Joan Rivers not in a laughing mood.

Couric and her show “Katie,” celebrated her show’s 100th episode with mother-daughter duo Joan and Melissa Rivers back on Feb. 22.

However, Word is the older Rivers was not doing much celebration. 

“Joan left the show furious with Katie and her producers, vowing to never return,” one WE-TV insider tells the NY Daily News's Confidential. “It was meant to be a funny, silly, Oscar-themed party, but instead Joan felt the usually perky Katie got nasty.”

According to our source, Rivers became upset when Couric started asking things like why Joan was “self-absorbed” and why everything was always about her.

“She even demanded to know why Joan said ‘nasty’ things about celebrities,” says the source.

Rivers was so unhappy with the ambush interview that after several conversations she had with Couric and her producers, that portion of the interview never aired. Instead, the show focused on Katie’s more softball questions and Rivers’ “we’ve been on more red carpets than Aladdin” one-liners.

“It is no secret that Katie hates doing gossipy type interviews,” one show insider says. “When Katie is asked to do something she doesn’t want to do, the mean girl part of her personality comes out. Unfortunately for her, Joan is the same way.”

Rivers’ daughter, Melissa, also a guest that day, commented on celebrity fashion, hair and flabby arms.

Couric, clad in a purple and orange floral number, asked the duo if they ever get sick of doing fashion commentary on E!’s “Fashion Police.” Then she attempted to get serious.

“You’re a very complicated person,” Couric told Rivers in a portion that was aired. “You’re so driven and you want to stay in the game.”

“My job is to make people laugh,” Rivers replied. “I love what I do.”

Rivers did not get back to us with comment.

A source close to Couric says, “Katie loves Joan. Anyone who watched the show saw that Katie and Joan had a fun, spirited back and forth. This wasn't anything unusual.”

​H/T NY Daily News

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