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

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 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.

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.)

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

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 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.

"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 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.

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

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

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

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

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

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

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

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

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

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.