Neil Patrick Harris swears he's not the Peacock on 'The Masked Singer' - so who is?

Neil Patrick Harris really wants to get the point across that he's not The Peacock on Fox's The Masked Singer.

Fans of The Masked Singer have spent weeks playing detectives in an attempt to deduce which famous faces are beneath the ornate masks worn by the costumed celebrity contestants.

The Peacock, who was the first masked performer to hit the stage when the show debuted, is still in the running as one of the final five, and his experienced stage presence - as well as a number of clues about magic - have led many to think it could be Harris under the pavonine disguise.

"I’m not the Peacock," Harris tweeted Thursday afternoon, seemingly out of the blue a day after The Masked Singer aired its seventh episode.

Judges Robin Thicke, Nicole Scherzinger, Ken Jeong and Jenny McCarthy have all seemingly evoked Harris' name at one point since the show began in early January (despite many, many clues to the contrary that they all seemed to just ignore), and after Wednesday's show, it appears Harris is finally setting the record straight.

Although the show itself did its best to throw some doubt on the assertion, The Masked Singer replied to Harris' post, "Suspicious…"

They also retweeted the denial, adding, "You keep saying that but…"

However, fans of the show who have been paying attention know (or, at least have a pretty good idea) that Harris is not, in fact, The Peacock.

So who is? Well, the odds-on favorite, based on the multiple clues presented throughout the show, is veteran entertainer Donny Osmond.

Season 1 Masked Singer competitors
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Season 1 Masked Singer competitors
MASKED SINGER: Poodle. (Photo by FOX via Getty Images)
MASKED SINGER: Lion. (Photo by FOX via Getty Images)
MASKED SINGER: Unicorn. (Photo by FOX via Getty Images)
MASKED SINGER: Alien (Photo by FOX via Getty Images)
MASKED SINGER: Bee. (Photo by FOX via Getty Images)
MASKED SINGER: Hippo. (Photo by FOX via Getty Images)
MASKED SINGER: Peacock. (Photo by FOX via Getty Images)
MASKED SINGER: Rabbit. (Photo by FOX via Getty Images)
MASKED SINGER: Raven. (Photo by FOX via Getty Images)
MASKED SINGER: Deer. (Photo by FOX via Getty Images)
MASKED SINGER: Monster. (Photo by FOX via Getty Images)

In the first week's clue package, The Peacock said he "walked on to a stage for the first time" when he was five years old and has been performing ever since. Osmond sang, alongside his brothers, on The Andy Williams Show in 1963, when he was five years old.

While Harris was famously a child star, his debut role came in the 1988 film Clara's Heart, which he made when he was already a teenager.

The Peacock also told viewers that it's "probably been a while since your mom had a poster of me on her bedroom wall," indicating that his massive popularity had waned some time ago. Osmond, while still a successful musician, was a wildly popular teeny bopper star in his younger years.

Additionally, The Peacock said he'd been "dear friends" with the late Michael Jackson. Osmond and the King of Pop were famously friends for decades while it doesn't appear that Harris had any sort of close relationship with Jackson during his life.

Neil Patrick Harris and David Burtka with their kids
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Neil Patrick Harris and David Burtka with their kids
We attended the @saks Holiday Window unveiling last night. The 14 Snow White inspired windows are spectacular, as was the first-rate light/projection/firework/production show staring the beautiful Snow White herself! Our family is finally feeling fully festive. #ad #saksholiday
Everyone knows I love a good meal! That's why I'm super excited to be a #CapitalOnePartner for the new @CapitalOne Savor card launch. It rewards you for doing the things you already love to do - which for my family, always includes something delicious. #SavorMoments
NEW YORK, NY-SEPTEMBER 1:(EXCLUSIVE COVERAGE) 'Wigstock' Producer Neil Patrick Harris, son Gideon Scott Burtka-Harris, daughter Harper Grace Burtka-Harris and husband David Burtka pose backstage at 'Wigstock 2.HO' at The Pier 17 Rooftop on September 1, 2018 in New York City (Photo by Bruce Glikas/Getty Images)
Fantastic Papa/Daughter date yesterday. We shopped for her brother, got our nails did, and crushed some crudo at @eatalyflatiron. This is the best age! For both of us! #scallops #urchin #grateful
Family Dinner Night! Excited to partner with @CapitalOne for the awesome new Savor card launch – it rewards you for two things we dig – food and entertainment! #SavorMoments #CapitalOnePartner
The entire Burtka-Harris family saw Harry Potter and the Cursed Child on Broadway today. Both parts in one day - over 5 hours! We loved it so much, we’d do it again tomorrow. Bravo, everyone involved. You inspire me to be better, to hug my kids, and to seek out magic. @hpplayus
Happy Easter from my family to yours. #dbelish #greatgoodtimes
NEW YORK, NY - NOVEMBER 20: David Burtka, Harper Grace Burtka-Harris, Neil Patrick Harris and Gideon Scott Burtka-Harris attend the Cinema Society Screening Of 'Moana' at Metrograph on November 20, 2016 in New York City. (Photo by J. Kempin/WireImage)
On holiday with the family. #ouioui @dbelicious
The loveliest of travel compagnons. Merci, @dbelicious & @eltonjohn & @davidfurnish & our four amazing kids for such fond memories. #families #grateful
David Burtka is one of the great dads, bar none. He is kind, selfless, zany, honest, strong, wise and a bright beacon of love. Gideon and Harper truly lucked out, as did I. Happy Father’s Day, @dbelicious. We love you a ton. #grateful
NEW YORK, NY - OCTOBER 15: Host David Burtka, actor Neil Patrick Harris and Gideon Scott Burtka-Harris and Harper Grace Burtka-Harris attend the Food Network & Cooking Channel New York City Wine & Food Festival Presented By Coca-Cola - Coca-Cola Backyard BBQ presented by National Beef hosted by Andrew Zimmern and Pat LaFrieda at Pier 92 Rooftop on October 15, 2017 in New York City. (Photo by Jason Kempin/Getty Images for NYCWFF)
I am sure missing my three favorite valentines today. I am sending lots of love and light to my wonderful family. ❤️Plus, HAPPY VALENTINES DAY TO YOU ALL!
Happy Father's Day to the coolest Papa I know. Thanks for being the best Co- parent a guy could ask for.
First day of school! Gideon and Harper are officially second graders! #proud #papa #timeflies 📷 = @dbelicious
Just, love.
Happy NYC Pride! How fortunate David and I are to live in a time and place that allows these two spectacular monkeys to grow and learn and love with honesty, freedom, diversity, and enthusiasm. So, so proud. 🌈 @dbelicious

These are just a few of the many, many clues that confirm that Osmond is The Peacock. However, it seems that Harris' name keeps coming up because of the frequent clues about magic and being a magician - not traits typically associated with Osmond's repertoire. 

However, that's just a lesser-known aspect of his career. Osmond and his famous sister, Marie Osmond, have performed magic acts together in Las Vegas many times in the past. 

So, basically, Harris is telling the truth. But you gotta hand it to The Masked Singer's tweet: the denial did sound pretty suspicious.

This week’s reveal was the Alien, which turned out to be La Toya Jackson.

The Masked Singer airs Wednesdays at 9 p.m. ET/PT on Fox, and ET Liveblogs every episode every week if you want to watch along with us. 

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