Sydney Sweeney just broke the Internet – and this time, it wasn’t for a new movie role.

The Euphoria star sent social media into a frenzy after posting a scorching photo to Instagram earlier this week, rocking a sultry cowgirl look that left fans breathless. But it wasn’t just the boots and country backdrop that got everyone talking – it was Sweeney’s undeniably transformed physique.

“sully living his best life in @heydude country,” she casually captioned the post, referencing her dog. But fans were definitely not focused on Sully.

“Babygirl posted… balance restored, oceans calmed, tectonic plates realigned,” one follower gushed, while another added, “I was on the edge of collapse, but her selfie hit like divine intervention.”

It’s all thanks to Sydney’s upcoming film

The jaw-dropping post, which showcases Sweeney’s toned curves, didn’t happen by accident. In fact, the actress recently revealed the secret behind her eye-popping transformation – and it’s all thanks to some serious fight training.

In a new interview with W Magazine, Sweeney opened up about the physical toll – and ultimate glow-up – that came with preparing for her role as boxer Christy Martin in an upcoming biopic.

“My body was completely different. I loved it,” she said. “I had about three and a half months of training. I started eating. I did weight training in the morning for an hour, kickboxing at noon for about two hours, and then again weight training in the evening for an hour.”

Sweeney’s radical transformation

The results? “My boobs got bigger. And my butt got huge. It was crazy!” she laughed. “I was so strong, like an incredible force.”

Normally a size 23 in jeans, Sweeney shared she went up to a size 27 during training – and she’s never felt more empowered.

With more than 25 million followers, it’s clear Sydney Sweeney knows exactly how to command a spotlight. Whether it’s on-screen or on the ‘gram, she’s bringing knockout energy – and fans can’t get enough.