Last night, the Mallard was voted off during “The Masked Singer” semifinals.

None of the judges were able to guess correctly.

Guesses ranged from country singers Billy Ray Cyrus to Jason Aldean.

Guest panelist Cheryl Hines even ventured a guess of George Foreman!

However, when host Nick Cannon eventually unmasked the Mallard…

…he revealed that it was “Duck Dynasty” star Willie Robertson!

Robertson joked that he felt like he was “hiding in plain sight.”

He also explained that the costume was not a real Mallard, but a wood duck.

With his dapper hat on, he revealed the costume was a whopping 9-feet-6-inches tall!