Katie Holmes has officially switched up her signature style.

The Dawson's Creek alum recently debuted a summer-ready hair transformation and proved that you need to make a dramatic change for it to feel fresh and new.

While attending Chanel's Tribeca Film Festival Artists dinner on June 10, Katie showcased her rich caramel balayage highlights that were blended throughout her brunette tresses. This subtle, yet striking update created dimension and texture to the star's look.

Katie's head-turning makeover, which was styled in effortless beachy waves, came courtesy of colorist Gina Gilbert and hairstylist DJ Quintero. 

And while the mane focus was on the 45-year-old's new 'do, there's no denying she stepped out in chic style.

For the event, Katie wore a black slip dress layered underneath a matching sparkly lace overcoat that featured diamond-embellished buttons. She accessorized with black sandal heels and a coordinating quilted clutch. Of course, her entire look was Chanel.

While Katie didn't share insight into her hair transformation, she recently discussed how her style changed after welcoming daughter Suri Cruise, 18, with ex-husband Tom Cruise.

"When my child was really small, I was drawn to wearing a lot of dresses," she told U.K. newspaper The Times earlier this month. "You do go through these different phases of motherhood and they inform what you feel comfortable in and what you don't. So over the years my style has changed here and there."

These days, the Batman Begins star is drawn to vintage clothing. "Living in New York City, I have to have things that are practical and comfortable," she explained. "Usually I'm in ballet flats, sneakers, baggy jeans and a T-shirt."

And although Katie noted that Suri "has her own sense of style and her own expressions," her closet staples tend to go missing.

"Sometimes the basics definitely disappear," Katie added. "But that's fine."

Of course, Katie isn't the only star to switch up her style. Keep reading to see which celebrities have debuted summer-ready hairstyles.

While attending Chanel's Tribeca Film Festival Artists dinner on June 10, Katie debuted a subtle, yet striking transformation of rich caramel balayage highlights that were blended throughout her brunette tresses.

The Kardashians star debuted a platinum blonde look and a bob haircut after rocking waist-length strands for quite some time.

"Did someone say they missed king kylie," Kylie teased in the caption of her June 8 Instagram post, to which her sister Khloe Kardashian cheekily replied, "I did! I did!!!!!!"

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

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.

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."

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.

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

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

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.

The model debuted a bleach blonde pixie cut at the FRAME event April 4.

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.

The Great star ushered in spring with a fresh cut, as she debuted a long bob March 25.

The Mean Girls alum swapped out her signature blonde hair for a dark brunette transformation on March 18.

The Selling Sunset star looked completely unrecognizable after debuting a dramatic blonde transformation March 16.

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.

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.

To prepare for her upcoming role as  Jean Seberg, the 29-year-old debuted a bleached blonde pixie cut.

The Princess Diaries alum unveiled fringe bangs at the 2024 Film Independent Spirit Awards.

The star debuted a bangin' new style at the premiere of her friend Nicola Peltz Beckham's film Lola in February 2024.

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.

In January 2024, a month after her prison release, the now-influencer shared a pic of herself sporting a shorter 'do.

Kylie Jenner traded in her dark locks for a pink 'do in January 2024.

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."

The Underworld actress took the plunge and went full blonde, while also debuting a short bob haircut.

The Daisy Jones & The Six actress debuted jet-black hair on Nov. 2.

The Flamin' Hot director recently showcased her dramatic transformation, debuting a choppy, layered bob on Nov. 9.

The TikToker debuted a fresh haircut, revealing a long bob.