The wild and wonderfully weird singing competition series introduced the show's first five singers, who make up Group A -- The Russian Dolls, The Snail, The Raccoon, The Seashell and the Robopine (a cyborg porcupine) -- and pitted them against one another in a musical battle royale.
After all was said and done, The Snail got the boot, and in one of the biggest shocks in the show's history, the contestant revealed themselves to be none other than Kermit the Frog, the legendary Muppet!
On Thursday, Kermit spoke with ET's Nischelle Turner and reflected on his brief but memorable time on the show.
"You know what, it was a pretty cool feeling," the legendary Muppet marveled.
While Kermit only got the chance to perform once, it still required a lot of time inside The Snail costume, which may have been constricting for some, but he explained how it proved to be quite spacious.
"It was kind of like a built in dressing room," he joked. "It was very comfortable, nice wall to wall carpeting, big screen TV, great Wi-Fi."
As for why the beloved frog signed onto the show, Kermit said that it was an opportunity to do something unique and totally new for him.
"You know, I've been in movies, I've been on TV, I've done a lot in my career but I've never tried to sing from inside a snail," he explained. "This was a once in a lifetime chance, so I leapt at it."
After all the votes were counted, it was The Snail who ended up getting the boot -- and his unmasking proved to be one of the most shocking and unpredictable reveals in the history of the show!
After throwing the judges off with a surprisingly cartoonish performance of "You Make My Dreams (Come True)" by Hall & Oates, The Snail left everyone at a loss when it came to guessing who it could be.
When it came time for the final guesses, the panel not only couldn't agree, but each came up with a suggestion miles apart from one another. Thicke suggested it could be Seth MacFarlane, while Jeong felt it could be Jay Leno. Scherzinger threw a curve ball with her guess of Billy Crystal, and McCarthy really swung for the fences with her guess of Ted Cruz.
As it turns out, they were all way off, because obviously the costumed contestant turned out to technically not even be a person. Who knew a Muppet could even be a contestant?!
"This is the most famous guest on Masked Singer ever," Jeong said in baffled amazement.
"I say it's hard being green, but sometimes it's even harder being a snail," Kermit quipped. "I've had just a great time being here and it's really been a pleasure. Thanks for having me!"
"The first to go home is the one we'll never forget," McCarthy marveled.
This reveal really opens the door for some wild guesses from the panelist in the future. Who knows what puppets might be under some of the other costumes this season?
If you're trying to crack the mystery of the costumed contestants like the rest of America, check out our running list of spoilers, hints and best guesses, where we break down all the clue packages and make wild (surprisingly accurate) predictions about the singers' secret identities.