‘The Masked Singer’ recap: A polarizing TV star and Las Vegas headliner unmasked in ‘Group C Finals: Decades Night’

It's "Decades Night" on The Masked Singer and viewers were tuned into Mystery Mixed Radio! In the Group C finals, Mad Scientist Monster, Nessy, and Yorkie each performed a hit song from an iconic era. One celebrity automatically advanced to the Lucky Six while two faced off in an electrifying Battle Royale.

Panelists Robin Thicke, Jenny McCarthy Wahlberg, Ken Jeong, and Rita Ora dissected the clues hoping to uncover which of your favorite stars are behind the wacky masks. Nick Cannon hosted the zany fun airing Wednesday, April 9 (8 p.m. ET/PT) on Fox. Find out who was unmasked below.

Yorkie

Yorkie took us back to the 1960s and barked out a few clues that had everyone saying, "hot diggity-dog": "I chose the 60s because they remind me of my mom. I instantly picture her as a young woman falling in love and getting married. That white picket fence dream of the decade. But just a few years later, when I was born, it all fell apart when my dad walked out — leaving my mom to raise a baby on her own. It was never the same. She used her pain as a cautionary tale. She taught me to be guarded with my heart and keep love on a short leash — to think things over — because every chance at love was a bigger chance at heartbreak. So I grew up fast. Some would say I was cold. I resented that part of myself for many years. I've had to learn how to let people in. After my own mess with love, I can now appreciate where my mom was coming from. She was just trying to protect me. So this song's for her — my ultimate protector."

Yorkie sang "Stop! In the Name of Love" by the Supremes before revealing a 60s-inspired clue: a vinyl record that said "Show Dog." The fashionable canine responded, "Yeah, I'm a show dog! I'm part of one of the biggest TV shows out there." The panelists' guesses were Lori Loughlin (Robin), Kyle Richards (Ken), and Erika Jayne (Jenny).

Mad Scientist Monster

Next up was Mad Scientist Monster, who shared a few clues about his life in the 2010s: "I chose the 2010s because they were lit. Electric cars hit the roads and smart phones hit the stores. And, it's one of the best decades of my career. It seemed like I could conquer the world. I won every award possible except that Nobel Prize. But I didn't do it alone, and while we had a very good run together, it didn't last forever. We had very different theories on life. I wanted to explore new avenues and keep our grand experiment going. But we never tested that hypothesis, so I ventured out on my own. At first I was, well, mad! But life rolls on — and once I went out on my own — I found that I quite liked that I was in control of my results. Now, I realize I learned a major lesson: Sometimes chemistry changes — and that's OK. Not everybody's going to love you — and that's OK, too. As long as you love yourself."

Mad Scientist Monster sang "Love Yourself" by Justin Bieber before revealing his 2010s-inspired clue: an iPad that said "Season 4." He responded, "I've performed with someone from Season 4." The panelists' guesses were Brad Paisley (Ken), Blake Shelton (Jenny), and Billy Ray Cyrus (Rita).

Nessy

Nessy was up last and transported us back the 1980s — which was all about excess — and he shared an excess amount of clues before singing: "Oh, the '80s. A decade of mullets, MTV, and camcorders. That's why I chose it. Back then you'd blast a love song from a boombox outside your crush's bedroom window just to let them know how you feel. For me growing up, there was one band blasting from my boombox — the mighty REO Speedwagon. I even got to open up for them. Their music taught me how to put lyrics to the feelings of love — something I became known for in my own career. Valentine's Day is practically my Super Bowl. God only knows how many couples have walked down the aisle to my song, but when it came time for me to say my own 'I dos,' you better believe there was one band that made the playlist — REO Speedwagon. So tonight, I'm honoring them. I can't fight the feeling anymore that I'd really love to keep going on in this competition."

Nessy sang "Can't Fight This Feeling" by REO Speedwagon before revealing his 1980s-inspired clue: a cassette tape that said "Bieber & Puth." Nessy responded, "They're just a couple of kids who have famously covered music. I got to score some cool dad points." We also saw a message from Bret Michaels of Poison saying, "I have rocked out with this man many times." The panelists' guesses were Dave Matthews (Rita), Daryl Hall (Robin), and Patrick Monahan of Train (Ken).

The Battle Royale

Voted through to the Lucky Six was Mad Scientist Monster, leaving Nessy and Yorkie to face off in the Battle Royale. Each put their own spin on "Hard to Handle" by Otis Redding before the panelists decided who would move on.

The Elimination

Following the close Battle Royale, Yorkie was eliminated from the competition. Before she revealed herself, the panelists got to open up a "Crack the Case" clue case. Yorkie's case held a pair of black leather boots. When asked what it meant, Yorkie responded, "These lucky boots are custom-made for me. My show boots are made for walking. Wherever I go — even the Vegas Strip." The panelists then submitted their final guesses: Erika Jayne (Jenny), Paris Hilton (Rita), Kyle Richards (Ken), and Lori Loughlin (Robin). Yorkie finally peeled off her mask and revealed herself as the polarizing star of Real Housewives of Beverly Hills and Las Vegas headliner, Erika Jayne! Jenny nailed it!

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