These Are the Hands-Down Best Celebrity Hair Transformations of 2019

Blink once and you might miss an A-lister dyeing their hair. Blink twice and you'll definitely miss them chopping it off. The celebrity hair transformations this year came at a rapid pace, inspiring fans to add to their moodboards, and we've pulled together some of the best ones.

Among them were Billie Eilish's neon green roots, Millie Bobby Brown's "wheat" blond hair color, and Jennifer Lopez's sleek blunt bob. Read on to relive your shock and awe when you first saw your favorite celebrities with their new hairstyles.

Cara Delevingne's Black Bob

Cara Delevingne might be known for her (sometimes platinum) blond hair, but not as of late November. Colorist Mara Roszak posted a photo of the actress with a jet black bob wig, captioning the post: "Gothic angel, fairy lady, babe all the way, this woman can truly transform into any and all."

Jennifer Lopez's Blond Lob

Jennifer Lopez chopped her hair into a sleek blond lob at the start of Fall. Her go-to hairstylist Chris Appleton added layers to the look in November.

Alexa Demie's Baby Bangs
Instagram | alexademie

Alexa Demie's Baby Bangs

In a quick-moving video on her Instagram, Euphoria actress Alexa Demie was sitting in the back of her car zooming in on her hair, which featured what appeared to be a messy bun and short bangs styled to look piecey. (Think: Lydia Deetz, but if she owned a smartphone and very on-trend sunglasses.)

Millie Bobby Brown's Wheat Blond Hair Color

Stranger Things actress and brand owner Millie Bobby Brown dyed her hair "wheat" blond — a warm golden blond — in October. Previously, she had dark brown hair.

Ashlee Simpson's "Pumpkin" Pink Hair Color

Ashlee Simpson debuted a smoky, peach-pink that her hairstylist Riawna Capri called "Pumpkin Pink" a few days before Halloween.

Katherine Heigl's Deep Brown Hair Color

Fans of Katherine Heigl are used to seeing her with blond hair, but she recently made the switch to the dark side. The actress revealed that the look is for her new role as Tully Hart on the upcoming Netflix series Firefly Lane.

Kim Kardashian's Bob Haircut
Getty | Raymond Hall

Kim Kardashian's Bob Haircut

Kim Kardashian chopped her hair into a blunt bob in September. "Yesterday we cut @kimkardashian the shortest we have EVER done it," Appleton said in his post debuting the look.

Britney Spears's Deep Brown Hair Color

"Same faces, same dress, new hair," Spears captioned the photo she used to debut her new brown hair color. She noted that her sister, Jamie Lynn, had been the one to inspire the hair transformation.

Cardi B's Blond Bob Haircut

Cardi B debuted a blond blunt bob in October — and while it's one of the milder transformations from the rapper, it's one of our favorites.

Barbie Ferreira's Bob Haircut

We audibly gasped when we saw how short Barbie Ferreira cut her hair earlier this year. She added short bangs to the mix, too.

Billie Eilish's Neon Green and Black Hair

Singer Billie Eilish revealed a monochromatic beauty look on her Instagram that was complete with new neon green roots in July.

Bella Hadid's Bright Blond Hair
Instagram | bellahadid

Bella Hadid's Bright Blond Hair

Bella Hadid flip-flopped between bright blond and her signature deep brown hair color in 2019.

Jada Pinkett Smith's Bright Blond Hair

Jada Pinkett Smith debuted a sandy shade of blond that was much brighter than her previous color for the warmer months.

Channing Tatum's Bright Blond Hair
Instagram | channingtatum

Channing Tatum's Bright Blond Hair

Most of Channing Tatum's followers answered "yes" when he debuted platinum blond hair in March.

Maisie Williams's Electric Purple Hair
Getty | Mike Coppola

Maisie Williams's Electric Purple Hair

Actress Maisie Williams ditched her pastel pink hairstyle for something more electric at the Game of Thrones premiere.

Behati Prinsloo's Watermelon Pink Hair

Model Behati Prinsloo debuted watermelon-hued beach waves back in March.

Lana Condor's Electric Purple Hair
Getty | Axelle/Bauer-Griffin

Lana Condor's Electric Purple Hair

Lana Condor was seen with purple hair peeking from her blunt bob in February.

Ruby Rose's Pastel Hair Color

Ruby Rose debuted one of this year's biggest hair color trends for Spring — pastel shades painted throughout her ends in February.

Khloé Kardashian's Platinum Bob

Devoted mom to True and reality star Khloé Kardashian chopped her hair into a platinum lob in mid-February, which she cut even shorter just a week later.