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Anne Hathaway -

Known for her signature long brunette hair, Hathaway went for a drastic change at the Met Gala in 2013, sporting a platinum blonde pixie cut.

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Cara Delevingne -

Known for her dark and bushy brows, Cara Delevingne had to bleach them for the Givenchy S/S 2015 show. She was unrecognizable!

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Emma Stone -

Famous for her red locks, many don't actually know that Stone is a natural blonde. She rocked the blonde look at the 2017 American Film Institute's Life Achievement Award Gala.

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Halle Berry -

The Halle Berry pixie cut has become an iconic hairstyle. But in recent years the actress has been going for a longer style with highlights, just like at the 'Bruised' premiere in 2021.

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Reese Witherspoon -

Reese Witherspoon is rarely seen in a hair color that's not her famous blonde locks. But at the 2004 Venice Film Festival, she changed it up with a dark brown color (the same color we saw in 2005's 'Walk the Line').

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Cameron Diaz -

Famous for her dirty blonde hair, the actress would often stay close to her natural color. But in 2006, she switched to dark brown. She's spotted here at the album release party for then-boyfriend Justin Timberlake's 'FUTURESEX/LOVESOUNDS.'

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Dwayne 'The Rock' Johnson -

Known for his muscles and bald head, The Rock once had a full head of curly, dark brown hair, like here at the Cannes Film Festival in 2006. Oh, how times have changed!

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Zooey Deschanel -

At this point, we can't even imagine Zooey Deschanel in anything else than her long brown hair and bangs. But in 2002, at the 'Abandon' premiere, she looked unrecognizable with a short blonde bob.

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Beyoncé -

Queen Bey has been rocking her caramel colored hair for years now, and is usually spotted wearing it long and wavy. But on rare occasions she'll switch it up, like at the 2015 Vanity Fair Oscar Party, where she rocked a blunt bob.

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Tom Selleck -

From the '70s to the present, Tom Selleck is known for his thick mustache. But at a 1990 event, he showed up unrecognizable with a very bare upper lip.

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Kate Hudson -

Known for her long blonde hair, Hollywood darling Kate Hudson looked totally different at the Screen Actors Guild Awards in 2018, where she showed up with a pixie cut.

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Kim Kardashian -

Kim K is known for her dark long hair, but she will occasionally switch it up. In 2017 at the LACMA Art + Film Gala, she went for a gray-silver hair color.

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Lady Gaga -

For a long time, we've been used to seeing Lady Gaga sporting over-the-top makeup. However, since her film career bloomed, she's been wearing more simple and classic makeup, like at the 2019 Academy Awards.

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Lupita Nyong'o -

The movie star is often seen rocking super short hair, but at the Screen Actors Guild Awards in 2019 she went for long braids.

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Gwyneth Paltrow -

Often rocking long, beach blonde waves, Gwyneth Paltrow attended the 2015 InStyle Awards with her hair pulled back into a mega sleek ponytail.

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Lindsay Lohan -

Over the years, the natural red head has experimented with both dark and lighter tones. Here at a Los Angeles event in 2009, she went for a blonde look.

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Jason Momoa -

The actor is known for his longer, shoulder-length hair that gives off major beach vibes. But back in 2013 at an event in New York, he sported a shorter haircut.

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Dakota Johnson -

The actress has found her signature look with her long brown hair and bangs. But at the 2017 Vanity Fair Oscar Party, she went for a bare forehead and side part.

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Lucy Liu -

For years, the actress has been rocking long straight hair, but recently she changed it for a stunning chin-grazing bob. Lucy Liu is seen here at the 2019 Hudson River Park Gala.

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Victoria Beckham -

Known for her sleek, elegant looks, Victoria Beckham has rocked many styles throughout the years. The most drastic one might be this short blonde cut at the 2007 MTV Movie Awards.

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Margot Robbie -

Often sporting perfect beach blonde hair, Margot Robbie went for a much darker look at the Academy Awards in 2013.

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Paris Hilton -

The famous blonde can be seen rocking different styles, but she even experimented with a different color, as seen here at the 2005 Young Hot Hollywood Style Awards.

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Britney Spears -

Despite her signature golden blonde layers, Spears experimented a few times with brown hair. She's seen here at an Academy Awards viewing party in 2013 rocking chocolate tones.

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Kate Bosworth -

Often seen with her platinum blonde hair in a sleek ponytail, the actress went for a muted red color at a 2018 event to discuss her film 'Nona' (2017).

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Hilary Duff -

Always stunning with her golden blonde waves, Hilary Duff went for an edgy look at a 2019 Golden Globes after-party with a platinum blonde bob.

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Bella Hadid -

The model always looks stunning with her classic dark brown hair. But at the 2019 MTV Video Music Awards, she went for a 'bronde' color, the perfect mix of blonde and brunette.

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Gwen Stefani -

The singer is known for her platinum blonde hair and often rocking red lips. But at the 2020 Grammy Awards, she showed up wearing a shiny pale gloss.

Sources: (Elle) (Men's Health)

See also: Hollywood's most legendary lips

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What celebrities look like without their signature look -

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