Lily Collins' new look is très chic.

The Emily in Paris star ditched her signature chest-length tresses that she's rocked on the hit Netflix series for at least three seasons and ushered in a summer-ready bob haircut. 

Lily debuted her dramatic transformation at the world premiere of her new horror movie, MAXXXINE. While attending the June 24 event at Los Angeles' TCL Chinese Theatre, the 35-year-old put her short 'do on display by styling it with a deep side part and curling just the tips to create a voluminous wave. 

And to make sure she was the mane focus on the red carpet, Lily wowed in a Schiaparelli getup that consisted of an oversized baby blue blazer and matching skirt with a thigh-high slit.

She skipped the blouse, wearing a gold-chain harness underneath that featured the brand's surrealist eye emblem. Gold leaf-shaped earrings and metallic sandal heels tied her look together.

As for what sparked the actress' drastic bob? She was ready to switch up her trademark look. 

"Changing my hair always brings out different sides of my personality and I love playing around," Lily told Vogue in an interview published June 24. "This cut and color feels bolder and yet somehow lighter. And completely more me—right now."

Lily's hair colorist Jacob Schwartz described her transformation as "dark suede brunette" on Instagram, while her hair stylist Gregory Russell explained the vision behind the major cut.

"I hadn't seen Lily for a while and when she sat down in the chair she said, 'What's our next look?'" Gregory told Vogue. "We had the long hair for some time and we did layers, bangs, face-framing…we did a lot. We thought this would be a chic switch-up."

Lily isn't the only star to usher in a new style. Keep reading to see what other celebrities have cut, colored and completely transformed their looks with new hair makeovers.

The Emily in Paris star debuted her dramatic transformation at the world premiere of her new horror movie, MAXXXINE, on June 24. 

"Changing my hair always brings out different sides of my personality and I love playing around," Lily told Vogue. "This cut and color feels bolder and yet somehow lighter. And completely more me—right now."

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.