‘The Masked Singer' spoilers: Who is Mad Scientist Monster?

Yahoo

08-05-2025

Yahoo is using AI to generate takeaways from this article. This means the info may not always match what's in the article. Reporting mistakes helps us improve the experience.
Yahoo is using AI to generate takeaways from this article. This means the info may not always match what's in the article. Reporting mistakes helps us improve the experience.
Yahoo is using AI to generate takeaways from this article. This means the info may not always match what's in the article. Reporting mistakes helps us improve the experience. Generate Key Takeaways
Originally published March 19, 2025 at 5:30 p.m. PT; updated April 23, 2025 at 5:55 p.m. PT
Mad Scientist Monster made his debut on the March 26 episode of The Masked Singer Season 13 as a member of Group C. The giant lab wizard's first song on Fox's reality TV show was "Unwell" and he had the four panelists (Robin Thicke, Jenny McCarthy-Wahlberg, Ken Jeong, and Rita Ora) guessing such famous names as Luke Bryan, Luke Combs, Blake Shelton.
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For "Boy Band Night," Mad Scientist Monster sang "I Swear" and the judges name-dropped Alan Jackson, Tim McGraw, and Keith Urban. When the Lucky 6 merged and he sang "There's Nothing Holdin' Me Back," the flustered panelists added Kenny Chesney and Trace Adkins to the mix. On "Soundtrack of My Life Night," Mad Scientist Monster sang "The Scientist" and had the panelists guessing Gary LeVox of Rascal Flatts, Kane Brown, and Jelly Roll.
But who is Mad Scientist Monster? If you're looking for The Masked Singer spoilers and clues, you've come to the right place! Read on for everything to know about this contestant, including which famous celebrity we think is hiding underneath the mask.
Gold Derby's official guess for Mad Scientist Monster is ... Brian Kelley from the Grammy-nominated country group Florida Georgia Line! Don't believe us? Let's examine all of the clues so far, one by one:
Photo credit:Audio Clues
Here is what Mad Scientist Monster had to say about himself on Week 1: "Becoming the Mad Scientist Monster fits perfectly for me because you have to be a little bit crazy, keep experimenting, and reinventing yourself — which is why I'm here. Sometimes in life you think you have the perfect equation — that things will be simple. I was on the path to become the best in my field. My skills made the scouts go wild. It seemed like everybody wanted to recruit me to their team. But when it was time for my chance, everything combusted. They sidelined me. I about lost my mind, but in the chaos a new experiment bubbled to the surface. You see, for every action there is a reaction. My reaction changed the world. I found my purpose. So yeah, it turns out I'm not crazy. I'm just a little mad. So stay awhile because there's a high probability I'll melt your heart."
Kelley played college baseball at Daytona State College and Florida State University. He was even scouted by a few pro teams. When he began spending more time on the bench than playing on the field, the aspiring artist filled the void by writing songs and eventually pursued music full time.
In Week 2, Mad Scientiest Monster proclaimed: "Everybody loves a hunky boy-bander, but there's more beneath the frosted tip surface — at the core boy bands are about chemistry. I know a little something about that. When I met my boo, it was a festive fall evening, gathered around a full Friendsgiving table. When our hands brushed passing the cranberry sauce, sparks flew. I swear, right then and there I knew I'd marry that girl someday. But seasons passed, until one sweltering summer day we reconnected. I serenaded her until her bunsens were burnin'. I made her a promise I'd never leave her side — for better or worse. Now here's an epic boy band song for that woman I made a promise to — my wife."
Kelley met his wife, Brittney, at a Thanksgiving party while they were both dating other people. Years later, they met again after moving on from their previous relationships and sparks flew.
In the Group C finals, Mad Scientist Monster let everyone know: "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."
As part of the duo Florida Georgia Line, Kelley and his bandmate, Tyler Hubbard, released their first EP, Anything Like Me, in 2010, before their first studio album, Here's to the Good Times, debuted in 2012. Over the next seven years, the pair racked up a slew of accolades, including ACM, CMA, American Music, Billboard, CMT, and People's Choice awards. In 2022, Kelley and Hubbard decided to split and pursue their own solo careers.
When the Lucky 6 performed, Mad Scientist Monster shared even more personal information: "If you've been doing your research, you'll know I've basically told you everything about me. I've played sports, I love my wife, and I didn't get here alone. And while you guys are close to solving the equation, there are still some holes in your theories because — spoiler alert — I am not Keith Urban. But, we have shared a stage together."
There aren't many clues we haven't already dissected here, but we can confirm Kelley has performed alongside Keith Urban (click here to see them singing at CMA Fest in 2014).
On "Soundtrack of My Life Night," Mad Scientist Monster's wife shared this about her furry husband: "I am so thrilled that my monster has made it this far. But secretly, me and the babies do miss him. He keeps us safe and sound, and that's important to me, because growing up I didn't have that. I was orphaned when I was a teenager. With no family stability, I became my own parent and my own protector. When I met Mad Scientist Monster, I didn't know how to be loved. I didn't think I deserved it, but he was patient with me. He knew I was a little broken from my past and wanted to help me rebuild — piece by piece. So I helped him too. I was an audience of one while he worked on his first huge single. I've done everything to support our dream. Honey, I came to life when you came into mine. Now go out there and share your talent with the world."
Kelley's wife, Brittney, has publicly stated she was orphaned at age 17 and struggled with depression.
SEE 'The Masked Singer': Top 21 most famous celebrities of all time
Visual Clues
On-screen hints during Mad Scientist Monster's video packages included the following: baseball speed sensor, a fish tank, a grandfather clock, a sandcastle, a cruise ship, the Sun from Season 4 (connection to LeAnn Rimes?), a pick-up truck, and a chalkboard that said "Love Yourself."
The baseball reference once again nods to Kelley's time as a collegiate athlete. The fish tank is a reference to his 2021 single, "Fish All Day." The cruise ship is a nod to Florida Georgia Line's 2012 hit, "Cruise." The sandcastle could simply be a shoutout to all of his beach-themed projects, like his song "Sunday Service in the Sand" or his album Sunshine State of Mind. That truck in the clue package is a clue about Florida Georgia Line's song "New Truck" and "Love Yourself" is a line from their duet with Bebe Rexha, "Meant to Be."
On the Lucky 6 night a Tennessee flag appeared on stage. Although Kelley is originally from Florida, the country superstar has certainly spent plenty of time in Nashville. On "Soundtrack of My Life Night" we saw a calendar for Aug. 2025 with the words "Summer Break" written on it. We also saw a chess board with nothing but knight pieces on it. Kelley is known for his summer jams and beach party anthems. We haven't quite figured out that chess clue though — help us out in the comments!
In-Person Clues
Following his performance of "Unwell," Mad Scientist Monster said, "You know what? This is so important to me because it gives me an opportunity to reintroduce myself to fans in a way that they've never seen before."
Kelley has been reintroducing himself to fans as a solo artist since Florida Georgia Line disbanded in 2022. He's certainly never performed as a giant purple monster!
Nick Cannon's T-shirt cannon was used in Week 2 to shoot Mad Scientist Monster merch at the judges. "It's an honor to have won the same award as both Backstreet Boys and BTS."
Like Backstreet Boys and BTS, Kelley was a member of a best-selling music group: Florida Georgia Line. They even performed "Everybody" with BSB on CMT Crossroads and released a single together, titled "God, Your Mama, and Me."
The Masked Singer time machine shared that Mad Scientist Monster performed with someone from Season 4. Kelley sang with Backstreet Boy Nick Carter (Season 4's Crocodile) on CMT Crossroads.
During his quick-fire Q&A with the panelists Mad Scientist Monster revealed that he drives a Ford Raptor, has won "many, many" awards for singing, and is "way younger" than Ken (who is 55). Kelley drives a truck, has definitely won his fair share of awards, and is 39 years old.
Who do you think is hiding underneath the Mad Scientist Monster costume on The Masked Singer Season 13? Sound off down in the comments section and join the discussion in our reality TV forums.
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