Hair dye is becoming increasingly popular among celebrities.
In recent months, stars including Ricky Martin, Hilary Duff, and Dua Lipa have posted photos on Instagram of their newly-colored strands.
Elle Fanning and Ariel Winter have also taken part in the trend.
Coincidentally, pink and blue currently seem to be the most popular colors among Hollywood stars.
In place of red-carpet makeup and fashion looks, celebrities have found new ways to express their style in recent weeks.
One of the most popular methods seems to be through hair dye. Recently, stars including Ricky Martin, Hilary Duff, and Dua Lipa have all taken to Instagram with photos of themselves wearing bright new styles. Coincidentally, almost every person that's done so has chosen either a pink or blue shade.
Here are some of the celebrities taking part in Hollywood's latest beauty trend.
Ricky Martin was one of the first celebrities to dye their hair a bright color while social distancing.
He showed off his newly-pink hair in an Instagram video about the importance of social distancing posted on March 19.
Lauren Alaina followed, writing a pun-filled Instagram caption about her new hair color.
"This quarantine's got me feeling extra blue," the country star wrote in an Instagram post on March 19. "Probably gonna stay that way teal it's over."
Luke Evans said his new hair color helps him channel a cartoon character.
In an Instagram post on April 8, the actor wrote: "Today I will be channeling Sir Woody of the woodpeckers #woodywoodpecker #redhairdontcare."
Elle Fanning also debuted a new color at the end of March.
Kristen Stewart drastically changed her look with orange hair dye.
On March 29, Stewart's hairstylist CJ Romero shared a photo of her new color, writing: "Who said you can't be cute in quarantine!? 🧚🏻♂️Hair cut on @emmaroberts and Cut and Color on Kristen!! 💇🏼♀️💇🏼♂️🧡🧡."
He later shared more details about how to achieve her bright-orange hair, which he describes as being a "cosmic rust" color.
The next month, Jennifer Love Hewitt added pink highlights to her hair.
"The smile of a girl who just did at-home hot-pink highlights because what else can I do right now!" she wrote in an Instagram post on April 1. "Thanks @limecrimemakeup, these hair conditioners are easy and so fun! @nikkilee901 don't be mad lol. I really miss you! Hey @911onfox, new look for Maddie?!"
Ireland Baldwin later experimented with box dye of the same color.
On April 4, the model and actress wrote about experimenting with box-dye on Instagram.
"I added some pink in my hair and it was my first box-dye experience and I didn't fry my hair off weeeeehooooo," she wrote.
Hilary Duff, on the other hand, spontaneously cut her hair and dyed it a bright shade of blue.
She shared a photo of her new style and color to Instagram on April 12, writing: "🤷🏼♀️yea." She later appeared on a live Instagram video with her husband Matthew Koma, who took credit for dyeing her hair.
Dua Lipa added some pink strands to her hair as part of an "experiment."
She also wrote about her new color on Instagram as part of a "Quarantine diaries" entry on April 16.
"This week's experiment... pink hair," she wrote. "That's kind of it really — I haven't acquired a new skill but I have joined World of Warcraft and I have two pets on it called mintsaws and little sheena (one's a dragonhawk and one's a tiger)."
A few days later, however, the musician ended up changing her look with orange dye and bangs.
Lipa revealed her new color through Instagram on April 26. In the caption of her post, she called her new shade "orangina quarantina 🍊."
Sarah Michelle Gellar surprised fans by dyeing her entire head pink.
On Instagram, she said she'd wear the temporary dye until it washes out.
"Well, because we're still in quarantine, I had to think of a new and creative way to embarrass my children," she said in her video on April 28. "Quarancolor!"
Ruby Rose chose two popular colors when dyeing her hair.
In an Instagram post on May 1, the actress wrote: "What can I say!? Sometimes you just need to feel blue and other times you need pink to lighten your day."
Kendall Jenner seemingly changed her look by turning her natural brown hair blonde.
Jenner shared an Instagram video of what appeared to be her new hair color on May 7. The video has been removed from her official page, but can still be found on fan accounts, like KendallJennerSnapchats.
As Insider's Darcy Schild previously reported, "the short clip appears to have been filmed with a filter, which makes Jenner's eyes look blue." It's unclear if the filter altered the appearance of her hair as well.
Dua Lipa experimented with a third color while staying home.
She posted two photos and a video of her new color to Instagram on May 12, and used four simple emojis in the caption: "🍓🍓🍓🍓."
Julianne Hough joined other celebrities by temporarily dyeing her hair pink.
"Fairy Kitten vibes today 🧚🏼♀️😽," she wrote as the caption of her Instagram post on May 13.
Bella Thorne added some blonde highlights to her brown hair.
"New hair, thoughts?? 🙌🤔E girl???" she wrote.
Sarah Hyland's hair-dye experience didn't go as planned, but she still looks great.
In an Instagram story posted on May 19, the "Modern Family" star said she tried to dye her hair pink, but ended up with red strands. She also compared her new hair to that of Ariel from "The Little Mermaid."
Megan Thee Stallion used hair dye to celebrate Pride Month.
On June 14, the rapper shared a video of her rainbow-colored hair, and wrote "Happy pride month hotties 😛" in its caption. She also shared some photos of the style, and wrote: "Today was a good day 💙 #allblacklivesmatter #blacklivesmatter."
Emily Ratajkowski brightened her look with blonde hair dye.
The model dyed her hair as part of a paid-partnership with hair-care company Kérastase, as she wrote in an Instagram post about her new color on Tuesday.
Kim Kardashian West added red highlights to her dark hair.
In a video posted to her Instagram story on June 29, Kardashian West said: "You guys I dyed my hair red. Do you love it?" In the video, she used a filter that changed her eye color and placed fake freckles across her face.
Ariel Winter switched from red hair to blonde strands.
Because her new hair color resembles that of Daenerys Targaryen from "Game of Thrones," Winter referenced the popular series in her Instagram caption, writing: "Winter Is Coming!!!!!!!!!!!"
Kaia Gerber documented her hair-dyeing journey on Instagram.
In an IGTV video, the model said she had always wanted to dye her hair pink, but never went through with it. Once she completed the dyeing process, Gerber then followed up with a selfie posted to her Instagram page.
Ariel Winter changed her hair color once again in September.
On September 8, the "Modern Family" star posted five selfies to show off her new, pink strands.
"Pinkie Pie spotted in the wild on Labor Day: a slideshow 🎀" she wrote underneath the images.
Lucy Hale ditched her signature color for a fall-inspired shade of red.
The actress, who often sports black hair, debuted her new color at the end of September. On Instagram, she shared a video of the change, and tagged celebrity hairstylist Kristin Ess: "did a thing 👩🏻🦰 / @kristin_ess."
Many have since compared Hale to fellow actress Sarah Hyland, who agreed that they now look like twins.
Joe Jonas dyed his hair pink in October for a good cause.
The "Sucker" musician first shared a photo of his newly-dyed hair on his Instagram story, adding a Breast Cancer Awareness Month sticker across the image.
He later posted another selfie showing his hair, and wrote: "#ivoted."
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