Dwayne 'The Rock' Johnson when he was 15 (Twitter)
We didn't peg Dwayne "The Rock" Johnson as the type who was a scrawny, string bean of a kid, but we didn't expect him to be Mr. Superbuff either!
"We all start somewhere," the 41-year-old, whose new reality competition series "The Hero" debuts Thursday on TNT, wrote with the photo. He also used some amusing hashtags, including "#creepymustache," "#boombox," and "captainwhiteshorts."
When we first saw the photo, we actually questioned whether he could really have been 15 at the time — he just looks so … mature! — and apparently we weren't the only ones.
Commenter @elizabeth4everr wrote, "Wow you don't look 15...more like 20-25…lol. And @YashKandhari noted, "hahahaha he was already 6'4 at the age of 15! Beast!!"
We must agree — pretty fierce for 15.
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