Jonah Hill stepped out looking unrecognisable from his Superbad days as he headed out for lunch in Malibu, California on Thursday, October 13.
The actor, 38, sported a whole new look with his platinum blond hair, thick beard and slimmed down frame.
Rocking a striped jumper and jeans, Jonah cut a casual figure for the low-key outing - but fans were quick to comment on his change of appearance.
One wrote: "I like the new look. The man struggles with self image being around all those Brad Pitts in Hollywood. Plus he's always cast as the character actor or sidekick.
"They have reminded him time and time again that he is not leading man material. Hopefully he has come to grips with all that nonsense and will enjoy the rest of his life as a busy working actor in that plastic world of big screen 'acting.'"
Another commented: "I love Jonah! He is such a great actor, I will watch anything that he's in."
One fan wrote: "Jonah is a very underrated actor. I really like his performances and frequently watch films he's in."
Jonah once told how he was almost 18 stone and has been open about how difficult it is for him to maintain a goal weight in the public eye.
But in 2016 and 2017 he stunned the world as he stepped out looking slimmer after a fitness overhaul.
For Moneyball, in which he starred alongside Brad Pitt, Jonah dropped 2st 8lbs, telling ABC News: "It was just mostly diet.
"I wish there was some crazy thing that I did, like a pill or a genie or something, but I went to see a nutritionist, and he told me what to eat to change my habits and stuff.
"I found that Japanese food was very helpful to me."
He added: "I went to a nutritionist and I said, 'I'll lose weight, I'll eat healthier and whatever, but figure out how I can drink beer'.
"It's so annoying because if I don't drink beer, I get really really thin. Then when I drink beer, I get a little bigger."
In 2017, the world saw him at his lowest weight when he shed an incredible 3-stone.
He's always been open about his weight, telling Ellen DeGeneres in 2018 that his self-esteem had taken a hit in the past.
He explained: "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.
"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."
