Rudy Giuliani’s appearance on ‘The Masked Singer’ causes judge to walk off the set

Giuliani, also has been a prominent member of Donald Trump's legal team, and whose son Andrew is currently running for governor of New York State against unelected incumbent Kathy Hochul.

He jumped out of a jack-in-the-box to give what has been described as a cringey rendition of the blues-rock classic "Bad to the Bone." When he took his mask off, Jeong, the former doctor turned comedian, actor, producer and writer, said "I'm done," and went backstage.

According to the New York Post, the show was "taped months ago," but the network decided to air it as-is.

Nicole Scherzinger asked "Is that Robert Duval?"

"No, that's not Robert Duval," Jeong shot back, clearly unhappy.

Giuliani himself later explained why he wanted to be on the show in the first place, saying it was precisely because it was so far out of his wheelhouse.

"I just had a granddaughter, Grace, and I want her to know that you should try everything, even the things that are completely unlike you and unlikely — and I can’t think of anything more unlike me and unlikely than this," he told the media during an interview.

However, Giuliani's performence apparently left a lot to be desired, according to some. "It can’t get badder than that," Robin Thicke, another judge, mused.