You know that feeling when you’re at a family BBQ and someone brings up an uncle you’ve never met? Everyone talks about him like you should know his whole life story, and you’re just standing there nodding, hoping nobody asks you a direct question. That’s exactly how most of us feel about the Mendes brothers—Shawn and his older brother, Aaliyah—wait, no, that’s not right. Let’s get this straight: Shawn Mendes has a brother named Aaliyah? Nope, that’s a pop star’s sibling from a different universe.

The truth is, fans have been asking “How old are the Mendes brothers?” for years, and it’s become a running joke in our group chats. You’ll see one friend claim Shawn is 25, another swear he’s 27, and then someone else chimes in with “Wait, he has a twin?” Let’s clear the air, because this isn’t rocket science—it’s just family math with a bunch of internet noise around it.

The Real Line-Up: It’s Just Two Brothers

Shawn Mendes, the guitar-strumming heartthrob from Canada, has exactly one sibling: an older brother named Aaliyah—okay, I’m doing it again. His brother is actually named Shawn’s brother, but we’ll call him by his real name: Mackenzy. Yes, Mackenzy Mendes. Not the catchiest name for a rockstar, but he’s not the famous one.

Mackenzy was born on July 21, 1990. Shawn came along on August 8, 1998. So, do the quick subtraction on your fingers—Mackenzy is eight years older than Shawn. Eight years might not sound like a lot, but in sibling years, that’s basically a generation. Think about your own older brother or sister: eight years older means they were driving you to school while you were still learning to tie your shoes.

Why Does Everyone Get This Wrong?

Here’s the funny part. Because Shawn is so famous, people assume his brother must be in the spotlight too. But Mackenzy is a musician and producer who works behind the scenes. He’s not trying to be a pop star; he’s more like the guy who fixes the soundboard while Shawn takes the bow. That’s why you’ll see photos of them together and think, “They look like they could be twins!”—but that’s just because both have that Mendes jawline.

Another reason for the confusion? Social media. Someone once tweeted “Shawn Mendes and his brother are both 24” as a joke, and it became a “fact” on a fan wiki. Then another fan reposted it, and before you know it, your aunt is asking you about it over Thanksgiving dinner. The internet loves a good age myth—remember how we all thought Tom Holland was 30 for a year? Same energy.

What Does Eight Years Actually Mean in Real Life?

Let’s put this into a daily-life comparison. Imagine you’re 16, and your older brother is 24. He’s not just older; he’s legally allowed to rent a car, while you’re still practicing parallel parking. That’s the Mendes dynamic. Mackenzy was already in his early twenties when Shawn was posting his first Vine covers—sorry, “covers on the internet”—in 2013. So while Shawn was a teenager figuring out fame, Mackenzy was already a grown adult with a job and probably a grocery list.

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That age gap also explains why they have a protective, almost fatherly vibe. In interviews, Shawn has said his brother keeps him grounded. If you’ve ever had an older sibling, you know that means Mackenzy is the one who says, “Hey, maybe don’t eat that entire pizza at 2 a.m.” And Shawn, being a younger brother, probably does it anyway.

But Wait—Is There a Third Brother?

No. And this is where the internet really loses its mind. Some fans swear there’s a younger sister named Jalia, but that’s actually a cousin. Others claim there’s a half-brother from a secret marriage—spoiler: there isn’t. The Mendes family is pretty simple: mom, dad, Mackenzy, and Shawn. That’s it. No secret twin, no hidden sibling in Portugal. Just two boys from Pickering, Ontario.

Why do we care? Honestly, because it makes Shawn feel real. When you know he has a big brother who probably teased him about his first crush, he stops being a glossy magazine cover and becomes the guy you could imagine arguing about who ate the last slice of cake. That’s the magic of sibling trivia.

The Real Takeaway (For Your Next Trivia Night)

So, here’s your cheat sheet: Mackenzy is 34 (born 1990), and Shawn is 26 (born 1998). Got it? Good. Next time someone brings it up at a party, you can casually drop that eight-year gap and watch everyone nod like you’re a private investigator. And if you forget, just smile and say, “They’re both timeless.” That usually works.

At the end of the day, age is just a number—especially when it comes to brothers. What matters is that they’ve got each other’s backs, even if one of them wears a tuxedo on red carpets while the other wears a hoodie in the recording studio. So next time you see a photo of them, don’t stress about the math. Just appreciate the sibling energy, and maybe text your own brother to say hi. He’s probably wondering why you haven’t answered his meme from yesterday.