Zac Efron has left the internet in a frenzy after uploading a red hot topless snap that appeared to show more than he intended to.

In the pic, the 32-year-old can be seen smoldering sauna short after a gym session, with his rippling abs on full display.

But it wasn’t his platinum blonde that had fans flocked on the comment section.

Instead, a phallic-shaped detail on his short drew eyes crotch-ward, with many viewers convinced he accidentally flashed his privates on the pic.

Immediately the photo was uploaded, one concerned asked, “What’s coming out of his pants?” while others flocked to comment.

Many admitted they had to zoom in to confirm they weren’t seeing things only in their heads.

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♨️ 🙏 @clearlightsaunas100

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One commenter said:

“Omg, that black string on your shorts could second for something else.”

While another commented:

“Um okay so do you see what I see?”

More fans chipped in to explain the strange looking thing on Zac’s white shorts was just a string.

One Twitter user remarked:

“It’s the string on his shorts. Lol I thought the same thing.”

A third piped up adding:

“If that’s how your mind works…then crack on. But it’s clearly the loop string around his trousers.”

Efron rose to fame in the High School Musical films.

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Special delivery for The Rock #Baywatch

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Efron has one of the most impressive physiques in Hollywood, and he often strips down in his films to the delight of fans. And many people all over the world are obsessed with him.

And, after his success in High School Musical, he went on to play several other roles of similar nature, including Link Larkin in the remake of a 1988 musical film, Hairspray.

As he became older, he began appearing in R-Rated films, including crude comedies such as Bad Neighbours and Dirty Grandpa.

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We can’t forget his appearance in the Baywatch remake.

His most impressive part about his character in Baywatch is that he “built a Baywatch body” in just 12 weeks when training for the role.

The actor has also ventured in much darker territorial films, such as his portrayal of the notorious serial killer, Ted Bundy. In this role, he managed to make thousands of women to become attracted to him, despite his lack of the “Baywatch abs.”

Earlier this year, during an appearance on Ellen, Efron lifted his shirt to reveal his six-pack, leading many fans to accuse his seemingly unachievable abs of being “fake.”

The actor also regularly shares clips of his grueling workouts to his over 40.5 million followers.