It's been 17 years since Jonah Hill was in school - but he's still getting his butt whipped by 12-year-olds.
The actor recently took to social media to share a comedic message about how he has started Jiu Jitzu classes and bowed to the superior knowledge - and chokeholds - of the young.
But, although the upload had a humorous undertone, the Maniac star's caption also sent out a heartwarming message to fans about how to grow the courage to move past your insecurities and accept yourself for who you are.
Explaining that when he was in high school, the boys who took part in martial arts classes used to beat him up, the Hollywood actor claimed he had now moved on with his life and taken up Jiu Jitzu himself -something he never thought he'd "be able to do".
"I started Brazilian Jiu Jitzu 2 months ago and try and train 4 or 5 times a week," he wrote. "In high school the dudes who did Jiu Jitzu used to beat the shit out of us at parties so it turned me off to it as an idea growing up. But quietly I always thought it was a beautiful art form."
He continued: "At 35 , I try and get over the stuff that made me feel weak and insecure as a teenager. It’s just wasted time and lessons you’ll never learn. Trying to let go of that. Nothing more humbling than getting your ass kicked by a 12 year old your first week
"Got my first stripe today. I know it sounds corny but it’s pretty dope to jump in and do stuff you’d never think you’d be able to do. Much respect to Sensai Josh and @clockworkbjj and Anthony for getting me into it ❤️ ?".
His post touched fans all over the world, gaining over 350,000 likes on Instagram alone. In addition, many of the 35-year-old's followers took to the comment section to congratulate him on beating his insecurities.
"@jonahhill I'm mad proud of you, and I don't even know you. Very inspiring stuff. Thanks for sharing your journey," wrote one Instagrammer.
Another added: "That's awesome! You never grow if you don't go out if your comfort zone," while a third Instagram user shared their own Jiu Jitzu experiences, putting: "Nothing more humbling than getting your ass kicked by someone who’s significantly smaller than you, I started BJJ 5 months ago and it’s definitely humbled me and taught me a great deal."
The 21 Jump Street star has spoken out before about his journey to acceptance, admitting that he was devastatingly impacted by being called "fat and gross" when he became famous.
Speaking to Ellen Degeneres, he claimed it took a "long time" to learn to love himself and he was still "under construction" now.
"I became famous in my late teens and then spent most of my young adult life listening to people say that I was fat and gross and unattractive," he explained. "And it’s only in the last four years writing and directing my movie, Mid90s, that I’ve started to understand how much that hurt and got into my head."
He continued: "I really believe everyone has a snapshot of themselves from a time when they were young that they’re ashamed of. For me, it’s that 14-year-old overweight and unattractive kid who felt ugly to the world, who listened to hip-hop and who wanted so badly to be accepted by this community of skaters."
Keep on loving yourself Jonah - we know we all do.