They say everyone has a doppelganger - a person floating out there somewhere in the world who looks exactly like you.
We think we've found the long-lost twins for the celebs below.
Some of these people have even gained a bit of fame themselves just for looking like their famous counterparts.
The rest ... well, they should, because holy s--t!
Check out the photos below and marvel at the resemblance between some of these celebrity/regular person lookalikes!
Heroes and Nashville actress Hayden Panettiere (above and below, right) and THG reader Alexia Howell (left). Both are singers too!
Hayden Panettiere (Again)
The same two lookalikes again. Can you even tell which is Hayden? (Left.)
Konrad Annerud is a bartender in Sweden who looks so much like a young Leo DiCaprio that he's often stopped by paparazzi wanting to snap photos.
Olivia Sturgiss gained major Instagram popularity due to her resemblance to Taylor Swift. Even Taylor herself noted the resemblance, and took a twinning photo with her fan at a concert!
It's uncanny! In this photo, it's hard to tell who's who, but Ellinor Hellborg is a Swedish beauty who has Adele's signature winged eyeliner look down pat.
Sonia Ali is a Londoner who enlists the help of her makeup artist sister to create Kim-inspired looks. We have to say, they've done an incredible job.
Kim Kardashian #2
Many women want to look like Kim Kardashian, so it's not surprising to see that she has two lookalikes. Kamilla Osman is a fashion blogger who is another dead ringer for the reality TV star.
Ty Jones looks so much like Ed Sheeran that he went to an agency and started doing paid appearances as the singer. Ed even met his doppelganger and was floored at the resemblance.
After seeing this pic, we were convinced that Ariana Grande and this girl were long-lost twins that were separated at birth. But it's Jacky Vasquez, another doppelganger who gained Instagram fame for her resemblance to a celeb.
Val Mercado is not just a Kylie Jenner lookalike, she also was rumored to be dating Kylie's boyfriend, Tyga... while Kylie and Tyga were still together. Creepy.
Kylie Jenner #2
There's more than one Kylie Jenner doppelganger in the ether, and this one is Michigan resident Gabrielle Waters. Who do you think looks more like Kylie - Val or Gabrielle?
Chelsea Marr bears such a striking resemblance to Angie that it's hard to tell them apart. Chelsea admits to getting lip fillers, but insists it wasn't to look like the movie star.
Harry Styles' twin is a girl! Cecile hails from Denmark and her photo went viral on Twitter after One Direction fans noticed her striking resemblance to the star.
Katy Perry's twin lives in the UK and has had to deal with fans running after her in public thinking she's the songstress. An aspiring actress, she says her likeness to Katy actually works against her in getting roles.
Heidi Agan was a waitress who looked so much like the Duchess of Cambridge that she now makes professional appearances as the royal.
When a Russian student named Ania saw that Kate Upton was wearing the same jacket she owned on the cover of Sports Illustrated, she had to recreate it. Kate retweeted the photo and, naturally, it went viral.
Fans went berserk when they noticed how much this Reddit user resembled Steve Buscemi.
Hope the guy on the left is as funny as Schmidt for his sake, given that he's likely mistaken for him.
Both of these girls are so hot.