Earlier this week, a pair of identical twins went viral for, well, looking exactly alike.

On Sunday, 19-year-old Ahmed tweeted four photos of him and his brother, Abdullah, along with a playful birthday message.

In the photos, the twins are wearing matching outfits and accessories.

Twitter users freaked out because they couldn't tell if the brothers were real or Photoshopped clones.

Ahmed eventually tweeted proof that he and Abdullah are, indeed, two separate people.

We all know the internet is obsessed with doppelgangers, but who knew a pair of identical twins could go viral for looking exactly alike?

Earlier this week, 19-year-old brothers Ahmed and Abdullah became Twitter-famous after people started freaking out about their resemblance to one another.

On Sunday, Ahmed tweeted four photos of him and Abdullah posing side by side in identical outfits. Both brothers can be seen wearing blue and white checkered shirts, navy pants, brown belts, wire-rimmed glasses, and silver necklaces. They also have matching rings, beards, and man buns.

"Happy 19th birthday to a brother who has the world's greatest brother, damn you're so lucky," Ahmed captioned the post.

To the brothers' surprise, however, Ahmed's playful message suddenly went viral, racking up over 61,000 likes and 14,000 retweets since Sunday.

Some people freaked out about the twins' looks.

One person jokingly called Ahmed and Abdullah "the new Dylan and Cole Sprouse."

But mostly, people just couldn't tell if the brothers were real or Photoshopped clones.

Ahmed eventually tweeted proof that he and Abdullah were, in fact, two separate people.

The brothers, who were born in Bosnia but currently live in Arizona, told Yahoo Lifestyle that they never expected their post to go viral. However, they have plans to use their newfound platform "to make a good difference" in the world.

"We want to bring peace and love, and for people to respect each and every religion and race out there," Abdullah said to Yahoo Lifestyle. "We want to one day become as financially stable as possible so then we can start many charity organizations for the unfortunate all around the world," he added.

For now, the twins are attending college and working part-time. The two are also active on Instagram and make "goofy" videos together on YouTube.

Ahmed and Abdullah did not immediately respond to INSIDER's request for comment.