He debuted new neon pink hair on his Instagram page last month.
But it appears as though Jonah Hill has now decided to wash out his shocking do.
Seen walking the streets of New York on Tuesday, the 34-year-old actor was all smiles as he strolled around the West Village.
Jonah opted for a red button-up shirt which featured a white rectangular panel.
He completed his look with a pair of dark trousers and comfortable sneakers.
The Hangover actor ensured he kept hydrated by carrying a large water bottle around with him.
Jonah's hair appeared to nearly be back to brunette with only a slight pink tinge.
Taking to Instagram last month, he showed off a new style with the caption: 'Omg you guys!'
Wearing a light T-shirt, he crossed his arms and ensured all attention was on his neon tresses.
Surprise! Taking to Instagram last month, he showed off a new style with the caption: 'Omg you guys!'
The Moneyball star has been going through a bit a transformation the last couple of years.
He's lost about 40lbs since late 2016 by cutting out beer, and his fashion of choice has been tie-dye t-shirts since production began on his directorial debut Mid-90's.
The movie has been described as coming of age drama that revolves around a skateboarding teenager and his relationships with his school friends, older brother and mother.
Jonah also wrote the screenplay and has previously revealed that he was inspired by the films Kids and This Is England.
No release date has been announced for Mid-90's, but it is expected to hit theaters sometime this year.
He also has two other films in production that includes starring in the Gus Van Sant film Don't Worry, He Won't Get Far On Foot, which also stars Joaquin Phoenix, Rooney Mara and Jack Black.
Transformation! Jonah lost about 40lbs since late 2016 by cutting out beer, and his fashion of choice has been tie-dye t-shirts since production began on his directorial debut Mid-90's
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