IN PHOTOS: Quarantine Hair Transformations of Hollywood Celebrities

Ariana is known for her signature straight hair and high ponytail.

She recently surprised everyone when she revealed her natural hair on Instagram and Twitter. Fellow pop star Katy Perry even pleaded for Ari to keep the look after 'quarantimes'.

On April 16, she changed the blonde part of her two-tone hair color into pink.

Ten days later, in an Instagram video where she planted kisses on boyfriend Anwar Hadid's cheek, the pink color on her hair had changed into orange. She captioned it: “orangina quarantine”.

On April 13, Hilary revealed her new stunning blue hair color.

And in July, Hilary went back to rocking her natural hair color with some blonde highlights.

In a funny Instagram video, Sarah debuted her rose gold hair color by saying, 'Well, because we're still in quarantine, I had to think of a new and creative way to embarrass my children: Quarancolor!”

'Empire' star Taraji P. Henson is known to be a hair chameleon. One minute she's rocking straight black hair, and the next she has a curly hair with blonde highlights.

Actress Jennifer Love Hewitt is a natural brunette, as seen in her movies such as 'Can't Hardly Wait' and 'I Know What You Did Last Summer'.

On March 4, just before the COVID-19 pandemic has forced everyone to stay at home, Jennifer had a hair makeover. From her signature long brown hair, she went for a long bob (shoulder length hair) with blonde highlights.

'L.A.'s Finest' star Gabrielle Union is often seen sporting long box braids or long wavy hair.

On April 5, Gab showed off her natural hair in an Instagram post she captioned: “When your natural locks appreciate the lock down…”

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However, due to the ongoing COVID-19 pandemic, she's staying safe at home like most people and hasn't had a touch-up, so her natural black roots have started growing.

Actress Bella Thorne had beautiful blue green highlights when the quarantine period began.

After wearing blonde highlights in May, 'Infamous' star Bella Thorne has transformed into a stunning redhead in June.

'90s pop princess Britney Spears is known for her long blonde hair, and during the early days of the quarantine, this is how her hair looks like.

'Guardians of the Galaxy' actress Pom Klementieff is best known for her portrayal of the character Mantis, who has dark hair. However, in real life, during the start of the quarantine period, Pom had platinum blonde hair.

On May 3, Pom's birthday, she unveiled her newly colored hair and she absolutely looks pretty in pink.

In July, Gaga went back to her signature blonde hair color.