Ryan Seacrest’s impressive arm definition is turning heads.

The “American Idol” host posted an Instagram video of himself doing seated bicep curls , showing off his bulging biceps. Wearing a navy blue T-shirt and gym shorts, the 50-year-old pumped iron and breathed heavily with effort as his trainer counted his 10 reps.

“The trick is to wear a t-shirt two sizes too small,” he joked in the caption.

Some fans were shocked by his fit physique.

“Bro is shredded!” one commenter wrote.

One user joked, “It’s 2025, Kelly Clarkson is still the nation’s sweetheart but Seacrest is now jacked. Love this for the world.”

More comments included, “Guns a blazin’ 🔥” and “Okay jacked 💪🏻💪🏻💪🏻💪🏻.”

Seacrest’s famous friends also shared words of encouragement.

“Queer Eye” alum Karamo Brown wro

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