What popular fan theories were later revealed to be true?

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Oftentimes, if a show, book or movie has a mystery, dedicated fans will try to solve it before it's revealed. From How I Met Your Mother to Lost, producers have kept fans guessing until the very end.

One user on Reddit asked what fan theories have turned out to be true, and the answers are truly fascinating. Warning: spoilers ahead.

Many knew the street peddler in Aladdin was more than he seemed:

The Simpsons aired a cliffhanger asking who shot Homer's boss, Mr. Burns, and one person figured it out before anyone else:

Harry Potter fans knew Snape's history before it was revealed in the final book:

RELATED: Can you guess these celebrity fan group names?

Celebrity fan group names
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Celebrity fan group names

Mariah Carey: Lambs

REUTERS/Rick Wilking

Lady Gaga: Little Monsters

REUTERS/Eduardo Munoz

Eminem: Stans

REUTERS/Andrew Kelly

Miley Cyrus: Smilers

REUTERS/Danny Moloshok

Beyoncé: Beyhive

REUTERS/Cathal McNaughton/File Photo

Justin Bieber: Beliebers

REUTERS/Brendan McDermid

Fifth Harmony: Harmonizers

REUTERS/Mario Anzuoni

Taylor Swift: Swifties

REUTERS/Mario Anzuoni

Meghan Trainor: Megatrons

REUTERS/Mario Anzuoni

Jennifer Lopez: J.Lovers

REUTERS/Mario Anzuoni

Katy Perry: KatyCats

Kirby Lee-USA TODAY Sports

Phish: Phans


Bruno Mars: The Hooligans

REUTERS/Andrew Kelly

Britney Spears: Britney Army

REUTERS/Mario Anzuoni

Grateful Dead: Deadheads

REUTERS/David Rae Morris

Adam Lambert: Glamberts

REUTERS/Pilar Olivares

Rihanna: Rihanna Navy

REUTERS/Mario Anzuoni

Jimmy Buffett: Parrotheads

REUTERS/Brendan McDermid

Nicki Minaj: Barbz/Barbies

REUTERS/Mario Anzuoni

Kesha: Animals

REUTERS/Danny Moloshok

Ellie Goulding: Gouldiggers

REUTERS/Lucas Jackson

One Direction: Directioners

REUTERS/Mario Anzuoni

Selena Gomez: Selenators

REUTERS/Lucas Jackson

Ariana Grande: Arianators

REUTERS/Mario Anzuoni

Charli XCX: Charli's Angels

REUTERS/Brendan McDermid

Iggy Azalea: Azaleans

REUTERS/Mario Anzuoni

Little Mix: Mixers

REUTERS/Mario Anzuoni

Josh Groban: The Grobanites

REUTERS/Carlo Allegri

Aerosmith: The Blue Army

REUTERS/Mario Anzuoni

Demi Lovato: Lovatics

REUTERS/Mario Anzuoni

Drake: Team Drizzy

Dan Hamilton-USA TODAY Sports

Rita Ora: Rita Bots

Reuters / Alex Morton Livepic 

Barry Manilow: The Fanilows

REUTERS/Mario Anzuoni

Ed Sheeran: Sheerios

REUTERS/Fred Thornhill

Carly Rae Jepsen: Jepseners

REUTERS/Brendan McDermid

Jason Derulo: Derulers

REUTERS/Stefano Rellandini

Cody Simpson: Angels/Simpsonizers

REUTERS/Mark Blinch

Austin Mahone: Mahomies

REUTERS/Carlo Allegri

Avril Lavigne: Black Stars

REUTERS/Mike Cassese

Lucy Hale: Halers

REUTERS/Kevork Djansezian

Chris Brown: Team Breezy

REUTERS/Kevork Djansezian

The Wanted: Fanmily

REUTERS/Lucas Jackson

Wiz Khalifa: Taylors/Taylor Gang

REUTERS/Mario Anzuoni

Clay Aiken: Claymates

REUTERS/Jim Ruymen

Slipknot: Maggots

REUTERS/Howard Yanes

New Kids on the Block: Blockheads

REUTERS/Mario Anzuoni

The Killers: The Victims

REUTERS/Mario Anzuoni

Big Time Rush: Rushers

REUTERS/Shannon Stapleton

Lil' Wayne: Wayniacs

REUTERS/Steve Marcus

Tamar Braxton: Tamartians

REUTERS/Kevork Djansezian

Green Day: Idiots

REUTERS/Aaron Josefczyk

Glee: Gleeks

REUTERS/Fred Prouser

Paramore: Parawhores

REUTERS/Steve Marcus

Conor Maynard: Mayniacs

REUTERS/Lisi Niesner

Amber Rose: Rosebuds

REUTERS/Danny Moloshok


That's not all Harry Potter fans predicted:

The entire concept of How I Met Your Mother was, clearly, who the mother was -- and some figured it out:

Finally, Lost fans had a feeling even the producers did not know what was going on after a while:

Whether we predict endings correctly or not, the fun is in the speculation -- and of course, the eventual reveal.

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