Well, that happened. In what was largely an anticlimactic end to what we were all bracing for this season on Fox’s “The Masked Singer,” disgraced former attorney Rudolph Giuliani showed up, sang an off-key and off-putting version of “Bad to the Bone” by George Thorogood and the Destroyers and then was unmasked as the Jack in the Box.

The show’s Wednesday episode teased the Giuliani reveal as “the biggest event in ‘Masked Singer’ history” — which was perhaps true, at least until the show casts O.J. Simpson next season. (Not to give them any ideas, of course.)

Panelist Ken Jeong was not pleased as reported: “No, that’s not Robert Duvall” (one of the top guesses), he said, arms folded and clearly appalled at the casting. At the very end of the episode, Jeong is shown saying, “I’m done,” and leaving the set. But the show’s producers exhibited a surprising bit of restraint in not milking his response, and also didn’t show fellow judge Robin Thicke going after him, as had been previously reported.

Said Thicke: “This is definitely something I never would have guessed.”

When news leaked earlier this year about Giuliani, “The Masked Singer” faced a heavy dose of backlash, as some in the media (including Variety) questioned whether bringing on such a figure would ruin the show’s reputation for being lighthearted, escapist fare.