Black Swan, Chameleon and Piglet will compete on next week’s finale Jennifer Maas | May 19, 2021 @ 6:00 PM Fox (Warning: This post contains spoilers for Wednesday’s “The Masked Singer” Season 5 semifinals.) “The Masked Singer” semifinals included one elimination but two unmaskings, as the Wednesday episode saw the long-awaited reveal of Season 5’s “clue-meister,” Cluedle-Doo. But before we got to that show-stopping moment, the final four “Masked Singer” contestants — Yeti, Black Swan, Chameleon and Piglet — performed yet again for judges Jenny McCarthy, Ken Jeong, Robin Thicke and Nicole Scherzinger, plus guest panelist Darius Rucker. Once they had wrapped up their final pre-finale numbers, Cluedle-Doo crashed the party to give his first-ever performance on the show, singing Mark Morrison’s “Return of the Mack.” Then he gave the judges a chance to guess who he was before he unmasked himself. They guessed Kevin James, Jamie Foxx and Akon — and they were all wrong.