Megan Fox is a lady in red.
The Transformers star recently debuted a drastic style change, unveiling a vibrant red hair color and a textured bob on Sept. 5. And while the Jennifer's Body star has sported auburn tresses in the past, she took it to the next level with an extremely bright and bold shade of crimson.
As for what inspired Megan's new look? Her go-to hairstylist Dimitris Giannetos offered insight into her French bob and red velvet hue.
"We wanted something major that was jaw dropping for Megan," he exclusively told E! News. "Just like her fiery personality, this look is so bold."
And like the trendsetter she is, the 37-year-old wanted to switch up her style ahead of the autumn season.
"Megan was ready for a bold change," Dimitris added, "and now seemed like the perfect time, especially since red shades are on trend for the fall."
In terms of the products the hair colorist used to create Megan's red-hot look, he applied Lime Crime's Unicorn Hair Full Coverage Dye, which he said "made this transformation so easy and attainable."
"I simply mixed the bright red shades Valentine and Flaming Red and applied it to the hair in sections," he detailed. "It also includes conditioning ingredients, which is why I love using it, the color lasts and moisturizes your hair beautifully."
It's safe to say Megan is a fan of her transformation, as she was spotted out and about in New York City on Sept. 5.
While enjoying an afternoon outing with fiancé Machine Gun Kelly, the actress looked chic in a gray oversized blazer dress that she paired with beige thigh-high boots that featured a snake-skin-style print and was laced up on the sides. She also accessorized with layers of chunky silver necklaces and matching earrings.
Because of Megan's neutral-colored attire, her red-hot 'do was definitely the mane attraction.
Moreover, the rapper also made a splash with his wardrobe, wearing a bright blue puffer jacket, striped shirt and coordinating pants.
Of course, Megan isn't the only celebrity to get into the fall season before it officially kicks off on Sept. 23. Keep scrolling to see which other stars have switched up their hairstyles ahead of autumn.
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.
Rihanna
While enjoying a dinner date with friends on Nov. 9, Rihanna debuted honey blonde hair. After years of rocking black tresses, the superstar decided to switch up her style for something brighter.
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.
The Kardashians star showed off her new bob hairstyle in a recent SKIMS video campaign.
The Hustlers star debuted a voluminous long bob and curtain bangs on Aug. 12.
Rachel Green, is that you? The Euphoria star appeared to take inspiration from Jennifer Aniston's Friends character with this layered look.
The Vanderpump Rules star debuted a platinum blond dye job in August 2023.
The '90s heartthrob debuted a newly shaved head, sharing on Instagram that "it's for work."
The "Say So" singer showed off her dramatic hair transformation on Instagram, debuting bright purple hair and a spooky spider design on the back of her head.
The Kick-Ass actress debuted a fresh bob haircut, which she hasn't rocked in quite some time.
The American Idol judge revived her signature style of 2008 and revealed baby bangs in a June 20 Instagram.
In July 2023, the SKIMS founder debuted a short bob, bringing to mind what has become her sister Kourtney Kardashian's signature style in recent years.
The Vampire Diaries actress debuted fringe bangs for the Los Angeles premiere of her new film Out-Laws in June.
The "Vogue" singer debuted an edgy shag haircut on June 11.
The Dance Moms alum proved you can be blonde and brunette at the same time with her recent hair change.
The High School Musical alum has entered her French girl era, after showing off her new curtain bangs.
The New Girl alum ditched her trademark brown hair and blunt bangs for a sky-high blonde 'do for her upcoming appearance on the '80s-based Apple TV+ series Physical.
The "Over It" artist headed into summer with a shorter cut and new hair color, debuting her blonde bob to Instagram in May 2023.
The X-Men star kissed her shoulder-length hair goodbye and debuted a pixie cut on May 26.