Don't mess with mama bear! Michael Bublé revealed during an appearance on Watch What Happens Live on Thursday, October 27, that Kris Jenner once chastised him for making a joke about her daughter Kim Kardashian.

The Canadian crooner, 41, gave host Andy Cohen and fellow guest Abbi Jacobson a quick recap. Back in 2011, while on stage at the iHeartRadio Live concert in Manhattan's TriBeCa neighborhood, Buble teased Kardashian, now 36, for her sex tape with Ray J.

"[She] gave me a ton of s--t for a joke I made about Kim Kardashian. … I said, 'Ladies and gentleman, please welcome to the stage Miss Kim Kardashian.' And so they all thought she was coming. I was joking and she wasn't," Bublé explained on Thursday night. "Then I was like, 'No, I'm just messing with you. That bitch is never coming on my stage. Because she didn't put me in that video.' I said, 'I'm so jealous of Ray J.' I was putting myself down, but all that her mom read was that I called her a bitch. They weren't happy about it."

The "Home" singer didn't reveal when the momager, 60, confronted him, but did say that they patched things up. "I had to explain it to her," he said. "She went, 'Oh, [because] I wondered what we did to you.'"

Cohen, 48, joked that Jenner must be constantly busy keeping tabs on her famous family. "It must be exhausting," he said. "You have a lot of stuff to clean up."

Watch Buble on WWHL in the video above!

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