Aquaman's Jason Momoa is making a splash with his new 'do.
The actor, 43, got his hair cut to support a cause close to his heart and documented the process in a video posted to Instagram Sept. 5.
"Hand me those braids," he told the person trimming his tresses before holding up his chopped strands. "Shaving off the hair. Ohhhh man! I've never even felt the wind right there."
While undergoing his hair transformation, Momoa urged his followers to eliminate single-use plastics from their lives.
"I'm tired of these plastic bottles. We gotta stop," the star continued. "Plastic forks, all that s--t. It just goes into our land. It goes into our ocean. I'm here in Hawaii right now and just seeing things in our ocean, it's just so sad. So please, anything you can do to eliminate single-use plastic in your life, help me....Plastic bottles are ridiculous. Bring your canteen or now everyone is making the aluminum, which is fantastic. So, aloha. We're going to keep going."
This isn't the first time Momoa has raised awareness for the cause. In 2019, he shaved his signature beard and discussed the need to use recyclable aluminum. At the time, Momoa also announced the launch of his company Mananalu, which sells drinking water in an aluminum bottle.
"Here's to new beginnings let's spread the aloha," the Game of Thrones alum captioned his most recent post. "Be better at protecting our land and oceans. We need to cut single use plastics out of our lives and out of our seas. Plastic bottles, plastic bags, packaging, utensils all of it. Let's aloha our ‘āina together aloha j. @mananalu.water."
To get a glimpse of Momoa's new look and to see more stars' hair transformations, keep scrolling:
Rihanna
The Fenty Beauty founder debuted a bright blonde hair transformation April 17 while celebrating her latest Fenty x Puma collection in London.
Delilah Belle Hamlin
The model debuted a bleach blonde pixie cut at the FRAME event April 4.
Megan Fox
The Jennifer's Body star traded in her bubblegum pink tresses for a baby blue bob, which she debuted April 2.
Zendaya
Less than a month afer chopping her hair into a long bob, Zendaya debuted a honey blonde transformation at the Challengers premiere March 26.
Elle Fanning
The Great star ushered in spring with a fresh cut, as she debuted a long bob March 25.
Rachel McAdams
The Mean Girls alum swapped out her signature blonde hair for a dark brunette transformation on March 18.
Bre Tiesi
The Selling Sunset star looked completely unrecognizable after debuting a dramatic blonde transformation March 16.
Kelly Osbourne
The Fashion Police alum ditched her signature purple hair after six years, tinting it an icy silver in March 2024.
Zendaya
The Dune actress debuted a shoulder-grazing bob at Essence's Black Women in Hollywood Awards March 7.
Sydney Sweeney
The Anyone But You star made a showstopping appearance at Miu Miu's fall/winter 2024-2025 show during Paris Fashion Week. For the March 5 event, she unveiled a dramatic long bob haircut.
Zoey Deutch
To prepare for her upcoming role as Jean Seberg, the 29-year-old debuted a bleached blonde pixie cut.
Anne Hathaway
The Princess Diaries alum unveiled fringe bangs at the 2024 Film Independent Spirit Awards.
Selena Gomez
The star debuted a bangin' new style at the premiere of her friend Nicola Peltz Beckham's film Lola in February 2024.
Jennifer Lopez
The "On the Floor" singer made a dramatic hair change, as she debuted a chin-grazing bob cut at Schiaparelli's haute couture spring/summer 2024 show on Jan. 22.
Gypsy Rose Blanchard
In January 2024, a month after her prison release, the now-influencer shared a pic of herself sporting a shorter 'do.
Kylie Jenner
Kylie Jenner traded in her dark locks for a pink 'do in January 2024.
Julianne Hough
In January 2024, the Dancing With the Stars personality shared a video of herself cutting her own hair. "Out with the old energy," she wrote, "and in with the new."
Kate Beckinsale
The Underworld actress took the plunge and went full blonde, while also debuting a short bob haircut.
Riley Keough
The Daisy Jones & The Six actress debuted jet-black hair on Nov. 2.
Eva Longoria
The Flamin' Hot director recently showcased her dramatic transformation, debuting a choppy, layered bob on Nov. 9.
Alix Earle
The TikToker debuted a fresh haircut, revealing a long bob.
Miley Cyrus
After rocking platinum blonde tresses for years, Miley officially returned to her brunette roots to model Gucci's new collection.
Kate Middleton
The royal recently showed off her new curtain bangs during a public appearance on Sept. 27.
The actress recently debuted a bright red hair color and equally bold blunt bob haircut.
Cara Delevingne
The supermodel debuted a punk-rock hairstyle at Vogue's World Show during London Fashion Week on Sept. 14
Brittany Snow
The Pitch Perfect star made a drastic hair change, going from dark brunette tresses to a bright blonde look.
The Scream actress debuted a bubblegum pink style in August 2023.
The son of David Beckham and Victoria Beckham got his head shaved by Selena Gomez's little sister, Gracie Teefey, in August 2023.
The Can't Hardly Wait actress showed off her drastic hair change, debuting dark red hair and a blunt bob haircut.
The Second Act star unveiled bright blonde highlights in a new selfie.