Somebody call 9-1-1 because Jennifer Love Hewitt’s hair is fire.
After all, the 9-1-1 actress recently got a touch up to her freshly blonde hairdo in preparation to film the upcoming season of the ABC series.
In a video shared to Instagram July 15, Hewitt put her lighter locks on display by running her fingers through her hair and showing off the freshly styled look.
In the caption, she simply wrote, “Season 10 hair ready! Let’s go!”
While Hewitt’s hair appeared slightly lighter than the dirty blonde hairdo she’s been sporting in recent months, she made the striking change after nearly a year as a redhead. For the reveal, she reenacted the iconic “bend and snap” line from Legally Blonde while showing her before and after.
“We always do a hair change for hiatus!” she captioned a separate Instagram post at the time. “I loved time with my girls and this new look.”
Meanwhile, the I Know What You Did Last Summer star left her classic brunette vibes in the past when she debuted her red hair in May 2025, with her sporting the look for season nine of the drama. Alongside a selfie of the new hair, she wrote, “I have wanted to be red for so long!”
Beyond keeping her followers up to date on her hairstyle choices through the years, Hewitt has given fans a peek into her relationship with husband Brian Hallisay, who she married in 2013.
"12 years of being married to the man of my dreams," she wrote on Instagram in November alongside selfies of the pair. "Happy Anniversary my love."
But while the Criminal Minds alum is happy to share some details of her life, she’s been vocal about keeping her and Hallisay’s kids Autumn, 12, Atticus, 11, and Aidan, 4, out of the spotlight—even if their eldest is hoping to follow in their acting footsteps.
"Our big thing with her is, even though my experience as a kid actor was very positive, I think we've both sort of said, ‘Stay in school, do that,'" she told E! News in 2024. "'Grow up. Wait until you're a little bit older. Don't take all of this on quite yet.’"
For more stars who have debuted incredible hair transformations over the years, keep reading…
Two weeks after attending the Little Brother premiere with a full head of brown hair, the WWE legend debuted a shaved look ahead of his second hair transplant.
"Round 2 of [Follicular Unit Extraction] Treatment and this time I went all in for best possible results," he wrote on X June 29, 2026. "Thank you Ken Anderson and the staff at Anderson Center for Hair for accompanying me on this journey!"
The Last Week Tonight host debuted jet-black hair for a guest role on ABC's long-running soap opera General Hospital.
Trading in her signature golden locks, the country music star wrote on Instagram in August 2025, "Well, the last time I saw my natural hair color, I was probably about 12 years old, but I thought it might be time to give it a second chance."
The Marvel actor said goodbye to Bucky Barnes' signature long hair in April 2025, showing off a shaved head at the Los Angeles premiere of Thunderbolts*.
The Queer Eye star had fans doing a double take when he ditched his signature gray hair for a dark brown 'do in April 2026. The fashion stylist noted at the time that the dramatic transformation was for a role and "not a midlife crisis."
The daughter of Charlie Sheen and Denise Richards shared her at-home hair dying journey, including its many missteps, on TikTok and raved about the results.
“I've been wanting to do this to my hair for years now," she said, "and I'm so happy that I finally did it.”
The Help star debuted her "choppity chop," she she put it, on the red carpet of the Breakthrough Prize Ceremony in April 2026.
In July 2025, the actor shaved off his beard for the first time in six years to film Dune: Part Three, which required him to rock a clean shaven look to reprise his role of Duncan Idaho.
The American Idol winner debuted a shorter hairdo in a July 2025 The Voice promo, trading her signature blonde waves for a shorter, darker bob style.
The actor debuted a bearded look, which he sports on season two of The Terminal List, in June 2025.
The Stranger Things star changed up his trademark shaggy hairstyle in May 2025 by debuting a buzzcut at the 2025 Crunchyroll Anime Awards in Tokyo, Japan.
In March 2025, the "Karma" singer debuted her rainbow mohawk at the GLAAD Media Awards.
In a March 2025 TikTok video, the model called this 'do with shaggy bangs the "worst haircut of my life."
The Gypsy Rose: Life After Lockup star debuted a short bob in March 2025, more than two months after giving birth to her and fiancé Ken Urker's first child, daughter Aurora Urker.
The formerly blond Real Housewives of Salt Lake City star debuted a red bob on Watch What Happens Live in January 2025.
The model debuted lighter locks in September 2024, a month after giving birth to her and Justin Bieber's first baby, son Jack Blues Bieber.
The Emily in Paris star debuted her dramatic transformation at the world premiere of her new horror movie, MAXXXINE, in June 2024.
"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 in June 2024, 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 former Bravo star debuted a platinum blonde look during 2024 Paris Fashion Week Haute Couture.
The Heads of State star debuted a drastic haircut—a shoulder-grazing bob—while attending a Bulgari event in Rome i May 2024.
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.