Kate Beckinsale Looks Unrecognizable After Debuting Blonde Bob Hair Transformation

Kate Beckinsale took the plunge and debuted a bright blonde hair color and shoulder-grazing bob cut.

By Alyssa Morin Dec 07, 2023 6:48 PMTags
Watch: Kate Beckinsale REACTS to Pete Davidson & Gisele Bundchen Meme

Do blondes have more fun?

Kate Beckinsale seems to be seeing if that's the case, as she recently switched up her signature style of long brunette tresses for a dramatic blonde bob hairstyle. The Underworld actress debuted her dramatic transformation at the Roger Vivier holiday dinner on Dec. 6 in Los Angeles.

For the festive event, Kate sleighed in a vibrant red power suit that she paired with a coordinating bustier and sky-high pleaser heels. She also matched her makeup to her outfit, wearing a bright crimson-colored lipstick, courtesy of makeup artist Jose Corella.

And while the 50-year-old donned a statement-making getup, she also made sure all eyes were on her new shoulder-grazing 'do. 

Hairstylist Dimitris Giannetos—who cut, colored and styled the actress' hair— gave Kate voluminous, textured waves and a deep side part. Her bombshell look perfectly complemented her sultry attire.

Before taking the plunge and going blonde, Kate turned heads at Elle's 2023 Women in Hollywood event on Dec. 5 with a glamorous look. She pinned her honey brown locks in a curly updo, which kept the focus on her black long-sleeve dress that featured colorful jewel embellishments and sexy side cutouts.

Celebrity At-Home Hair Transformations

Of course, Kate's bejeweled look was a subtle version of the epic Titanic-inspired dress she wore to Leonardo DiCaprio's 49th birthday bash last month.

At the time, the Pearl Harbor star stole the spotlight in a little black dress that featured a diamond embellishments on the neckline and a gigantic blue sapphire gem on the waist—which fans compared to the Heart of the Ocean necklace in Leo's iconic 1997 film.

Gregg DeGuire/Variety via Getty Images

And no detail went unnoticed, either. She styled her eye-catching outfit with sheer tights, black stilettos and a massive bow hair accessory.

Kate isn't the only celebrity who has pushed the beauty boundaries. Keep reading to see all of the jaw-dropping hair transformations in recent months.

Priyanka Chopra

The Heads of State star debuted a drastic haircut—a shoulder-grazing bob—while attending a Bulgari event in Rome on May 20. 

Jessica Biel

In May 2024, the actress chopped her hair into a bob that many fans on social media said reminded them of one of the looks she sported as Mary Camden on the '90s series 7th Heaven.

Megan Fox

The Transformers actress returned to her dark brown tresses and debuted a sassy bob in May 2024, a month after she dyed her hair blue to enter what she dubbed her "Jedi era."

Dannielynn Birkhead

At age 17, the daughter of the late Anna Nicole Smith debuted a new lob hairstyle overnight during 2024 Kentucky Derby weekend, which she attended with dad Larry Birkhead.

Demi Lovato

The singer debuted a lighter, shorter 'do in April 2024.

Kelly Osbourne

The Fashion Police alum debuted a blonde bombshell hair transformation May 8.

Kim Kardashian

Back to blonde: Kim debuted a new platinum 'do in April 2024.


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.


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. 


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.

View More Photos From Stars' Epic Hair Transformations