Plus, Lucky Duck showed up to chastise the panelists to their faces.
The trio kicked off the episode with a performance of “My Sharona” by the Knack.
Then Yorkie took us back to the 60s with the Supremes' “Stop!

Yorkie in ‘The Masked Singer’ season 13 episode ‘Decades Night’.Credit:Michael Becker/FOX
In the Name of Love.”
After a clue brought via a time machine (what else?
Then it was time for Jeong to put his comedic chops to use.

Yorkie, Mad Scientist Monster and Nessy in the ‘The Masked Singer’ episode ‘Decades Night’.Michael Becker/FOX
“I am dressed in the 70s, because I just turned 71 years old,” he joked.
Whats going on my friends?"
he says via video.

“It is your friendly neighborhood Banana, Bret Michaels, Bandana Banana.
The first vote revealed that Mad Scientist Monster was the contestant to automatically move on to the next round.
Before you vote, panel, I must remind you of the stakes,” he told them.

“So far, weve had eight celebrities unmasked, and youve only gotten four right.
You guys need to be better at your jobs.
He quacked away their subsequent excuses.

Erika Jayne on ‘Watch What Happens Live with Andy Cohen’.Charles Sykes/Bravo via Getty
The Masked Singerairs Wednesdays at 8 p.m. ET/PT on Fox.