You’ve probably seen the headlines or the "fitness journeys" on Instagram where someone promises they can turn a "square" backside into a perfect "peach" in just thirty days. Honestly? It’s mostly nonsense. When we talk about celebrities with square bums, there’s this weird societal pressure to view the shape as a "problem" to be fixed. But if you look at the red carpet, some of the most iconic, athletic, and high-fashion bodies in the world naturally have this exact silhouette.
The "square" or "H-shape" is basically defined by a straight line from the hip bone to the outer thigh. It’s a look that’s common among high-fashion models and elite athletes. Instead of the curves tapering in at the waist or flaring out wildly at the hips, everything kind of stays in a neat, vertical alignment.
Who are the celebrities with square bums?
It’s actually more common than you’d think. Take Miley Cyrus, for instance. Miley has a very lean, athletic build that often falls into the square category. Her frame is built for movement—she's basically all muscle and energy. Then you have Cameron Diaz, the literal poster child for the "athletic chic" look. Her square-shaped glutes are a result of her being incredibly active; that shape often comes from having high hip bones and a solid muscular base without a massive amount of lower-hip fat storage.
Other stars like Gwen Stefani and even Kendall Jenner (at various points in her career) have showcased this H-shape. For Kendall, it’s what makes her so "clothes-hanger" perfect for couture—designers often prefer a flatter, more linear hip line because it doesn't disrupt the silhouette of the garment.
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Why does the shape happen?
It’s not because they "forgot to do squats."
Basically, it comes down to two things:
- Bone Structure: If your hip bones are high and wide, your glutes are going to look more square. You can’t exercise your way out of your skeleton.
- Fat Distribution: Some people naturally store fat in their "love handle" area rather than the lower part of the cheek. This fills in the "dip" and creates that vertical H-line.
The "H-Shape" vs. The World
Social media has spent the last decade obsessed with the "O-shape" (round) or the "A-shape" (heart). Because of the BBL (Brazilian Butt Lift) boom, we’ve been conditioned to think any line that isn’t a circle is a "fail." But many celebrities with square bums prove that this shape is actually the hallmark of a "rectangle" or "athletic" body type, which is often much easier to style in high-end fashion.
Think about Keira Knightley or Gwyneth Paltrow. Their silhouettes are sleek. They don't have that "shelf" look, and that’s exactly why they look so good in slip dresses and tailored trousers.
Can you actually change a square bum?
If you’re reading this because you have a square shape and want to "round it out," here is the cold, hard truth: you can grow the muscle, but you can't change the attachment points.
Experts like trainer Aaron Schiavone point out that while you can't move your hip bones, you can target the gluteus medius—the muscles on the side of your hip—to add a bit more volume. But even then, if your pelvis is built like a box, your glutes will likely stay in that H-family. And that's fine.
The Exercise Myth
Most people think heavy squats are the answer. Actually, if you have a square shape, heavy squats might just make the "box" bigger. To get more of a rounded look, you’d need to focus on:
- Hip Abductions: These hit the side of the glute.
- Cable Kickbacks: These help with that "pop" at the back.
- Fat Loss: Sometimes the "square" look is just excess fat on the hips. If that leans out, the underlying muscle shape shows through more.
How Stylists Dress the Square Shape
Celebrity stylists don't look at a square bum and think "Oh no." They think "Structure!" If you have this shape, you share a wardrobe DNA with some of the best-dressed people in Hollywood.
High-waisted pants are the secret weapon here. Because square shapes often come with a less-defined waist-to-hip ratio, creating a "fake" waist with a belt or a high-rise jean completely changes the silhouette. Miley Cyrus does this perfectly with vintage-style denim.
Avoid shift dresses if you want to look curvy—they’ll just hang off the widest part of your hips and make you look like a literal rectangle. Instead, look for A-line skirts or anything that flares out from the waist. This creates the illusion of the "heart" shape that everyone is currently obsessed with.
The Reality of the "Instagram Look"
We have to talk about the elephant in the room: surgery. A lot of the "round" butts you see on celebrities today started out square. When you see a dramatic shift in a celebrity’s shape—where they go from a linear H-shape to a massive O-shape—it’s rarely just "heavy lifting and protein."
The Brazilian Butt Lift (BBL) is specifically designed to take fat from the "love handle" area (which causes the square look) and move it to the lower part of the cheek to create a curve. But as we’re seeing in 2025 and 2026, many celebrities are actually reversing these procedures. The "skinny-athletic" look is coming back into favor. The square, toned, athletic bum is "in" again.
Final Thoughts for the "Square" Squad
If you’ve got a square bum, stop trying to kill yourself at the gym to look like a Kardashian. Your body is built for speed, stability, and high-fashion tailoring.
Actionable Insights for Your Wardrobe:
- Embrace the "Boyfriend" fit: You look better in loose, low-slung trousers than almost any other body type.
- Pockets matter: Look for jeans with pockets that are centered and slightly higher. It lifts the visual "weight" of the cheek.
- Focus on the waist: Since your hips and waist are similar in width, using a belt to "cinch" creates a curve that isn't naturally there.
- Check your posture: Sometimes a "flat" or "square" look is just a result of a tilted pelvis (Posterior Pelvic Tilt). Fixing your standing posture can "un-tuck" the glutes and make them look instantly more shaped.
Ultimately, the goal isn't to have the "perfect" shape—it's to understand the one you have. Celebrities with square bums have been some of the biggest trendsetters of the last thirty years. If it’s good enough for Cameron Diaz and Miley Cyrus, it’s probably doing just fine for you, too.
Go find a pair of high-waisted, wide-leg trousers. Trust me, they were made for your frame.