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Image: Banana Republic, L'Wren Scott And Krista Smith Celebrate The Launch Of The Banana Republic L'Wren Scott Collection

Beauty

10 celebs with bold hair colors

From Katy Perry to Rihanna, take a look at which stars opted for rainbow-bright color changes.

 / Updated 10 PHOTOS
LOS ANGELES, CA - APRIL 08:  Katy Perry attends as Nicole Richie, Rivka Sophia Rossi, Hayden Slater and friends host Marianne Williamson, Independent Candidate for Congress, CA 33 event at Kayne Griffin Corcoran Gallery on April 8, 2014 in Los Angeles, California.  (Photo by Tibrina Hobson/Getty Images)

epa02994764 US singer Katy Perry arrives at the 2011 MTV Europe Music Awards (EMA) held at the Odyssey Arena in Belfast, Northern Ireland, Britain, 06 November 2011.  EPA/IAN WEST UK AND IRELAND OUT NO COMMERCIAL SALES

PARIS, FRANCE - MARCH 07:  Katy Perry attends the Miu Miu Ready-To-Wear Fall/Winter 2012 show as part of Paris Fashion Week at Conseil Economique et social on March 7, 2012 in Paris, France.  (Photo by Pascal Le Segretain/Getty Images)

HOLLYWOOD, CA - JUNE 26:  Singer Katy Perry arrives at the premiere of Paramount Insurge's "Katy Perry: Part Of Me" at Grauman's Chinese Theatre on June 26, 2012 in Hollywood, California.  (Photo by Michael Buckner/Getty Images)

10 celebs with bold hair colors

Brown, red or blonde? Those options are too limiting for some risk-taking celebrities. From Katy Perry to Rihanna, take a look at which stars opted for rainbow-bright color changes:

Katy Perry
Katy Perry changes her hair color like a girl changes clothes... literally. The pop singer seems to always match her locks to her bright, fun ensembles. Perry recently debuted her "slime green" 'do on Instagram, adding the emerald hue to her rainbow repertoire.

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LOS ANGELES, CA - NOVEMBER 19:  Singer Ke$ha attends the launch celebration of the Banana Republic L'Wren Scott Collection hosted by Banana Republic, L'Wren Scott and Krista Smith at Chateau Marmont on November 19, 2013 in Los Angeles, California.  (Photo by Michael Kovac/Getty Images for Banana Republic)

FILE - This Nov. 24, 2013 file photo shows musician Ke$ha at the American Music Awards at the Nokia Theatre L.A. Live in Los Angeles. Ke$ha's representative confirmed Friday, March 7, 2014, that the singer checked out of rehab. She entered in January. The 26-year-old vegetarian said she entered rehab to "learn to love myself again, exactly as I am." Ke$ha, whose real name is Kesha Rose Sebert, is the performer of such tunes as "Crazy Love," ''Die Young" and "Timber" with Pitbull. (Photo by Jordan Strauss/Invision/AP, File)

BEVERLY HILLS, CA - MARCH 29:  Singer Kesha arrives at The Humane Society Of The United States 60th anniversary benefit gala at The Beverly Hilton Hotel on March 29, 2014 in Beverly Hills, California.  (Photo by Gregg DeGuire/Getty Images)

Soft and edgy

Singer Ke$ha has rocked various pastel hues, sometimes even going so far as to wear a few at the same time.

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Television personality Kelly Osbourne attends the Vanity Fair and L'Oreal Paris D.J. Night at Sadie Kitchen and Lounge on Friday, Feb. 28, 2014, in Los Angeles. (Photo by Dan Steinberg/Invision/AP)

LOS ANGELES, CA - NOVEMBER 24:  TV personality Kelly Osbourne attends the 2013 American Music Awards at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California.  (Photo by Jason Merritt/Getty Images)

Radiant orchid

Whether her tresses are bobbed, buzzed, or bunned, E! host Kelly Osbourne's purple hue has become her trademark look. This soft lilac color became quite popular among celebrities; Nicole Richie, Ellie Goulding and Vanessa Hudgens have all given the shade a try.

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US-singer Pink performs on stage during the opening night of the UK Funhouse Summer Carnival stadium tour at the Stadium of Light, Sunderland, England, Friday, June 11, 2010. (AP Photo/Scott Heppell)

MELBOURNE, AUSTRALIA - MAY 07:  Singer Pink arrives for the 2006 TV Week Logie Awards at the Crown Entertainment Complex on May 7, 2006 in Melbourne, Australia.  (Photo by Ryan Pierse/Getty Images)

377543 23: Singer "Pink" poses for photographers at the 2000 Soul Train Lady Soul Awards September 2, 2000 in Santa Monica, California. (Photo Steve W Grayson/Online USA)

Her name says it all

Alecia Moore Hart, better known as Pink, morphed her hair color from full-on fuschia to a pink ombre to platinum. She'll forever be known for her signature 'do. After all, it's in her name!

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Singer Avril Lavigne poses on a rooftop in Union Square in New York, May 20, 2004.  (AP Photo/Jim Cooper)

MUNICH, GERMANY - NOVEMBER 01:  (EXCLUSIVE ACCESS) Recording artist Avril Lavigne poses in the Studio during the MTV Europe Music Awards 2007 at the Olympiahalle on November 1, 2007 in Munich, Germany.  (Photo by MJ Kim/Getty Images for MTV)

Wild streak

Avril Lavigne is known for her punk style and stick straight hair. The Canadian singer has tried out a few colors from hot pink to neon green, but her classic black streaks are her style staple.

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NEW YORK, NY - MAY 07:  NEW YORK, NY. (May 7, 2013) Fashion designer, bestselling author and lifestyle expert Lauren Conrad hosts the beach-themed launch of Malibu Island Spiced, the all-new low-calorie spiced rum from Malibu, at Ph-D at the Dream Downtown.  (Photo by Michael Loccisano/Getty Images)

LOS ANGELES, CA - APRIL 24:  TV personality Lauren Conrad attends a signing for her book "The Fame Game" at Barnes & Noble at The Grove on April 24, 2012 in Los Angeles, California.  (Photo by David Livingston/Getty Images)

Pretty in pink

Reality TV star Lauren Conrad is now a beauty and style expert, so it's no surprise that she's dabbled with dyed hair. Conrad has tried a variety of ombre styles and has dip-dyed her hair pink once a year since 2012. She revealed another set of pale pink tips on her Instagram in April 2014.

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Neon lights

From bright pink to electric blue, Demi Lovato has worn it all. Lovato's confidence explodes with every new shade -- her most recent dye job also includes a partially shaved head.

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NEW YORK, NY - APRIL 01:  Recording artist Nick Cannon visits 106 & Park at BET studio on April 1, 2014 in New York City.  (Photo by Bennett Raglin/BET/Getty Images for BET)

PASADENA, CA - APRIL 08:  TV personality Nick Cannon poses for a portrait during the 2014 NBCUniversal Summer Press Day at The Langham Huntington on April 8, 2014 in Pasadena, California.  (Photo by Charley Gallay/NBC/NBC via Getty Images) NUP_163613_0900.JPG

Channeling his spirit animals

From leopard spots to a bold skunk stripe, singer Nick Cannon shows he is not afraid to walk on the wild side.

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PARIS - OCTOBER 06:  Singer Rihanna arrives to attend the Chanel Pret a Porter show as part of the Paris Womenswear Fashion Week Spring/Summer 2010 at Grand Palais on October 6, 2009 in Paris, France.  (Photo by Pascal Le Segretain/Getty Images)

Singer and cast member Rihanna poses on the red carpet as she arrives for the world premiere of the film "Battleship" in Tokyo April 3, 2012.  REUTERS/Yuriko Nakao (JAPAN - Tags: ENTERTAINMENT)

NEW YORK - SEPTEMBER 28:  Rihanna attends Drake's after party at Greenhouse on September 28, 2010 in New York City.  (Photo by Jerritt Clark/Getty Images)

LONDON, ENGLAND - MARCH 28:  (UK TABLOID NEWSPAPERS OUT) Rihanna attends a photocall for Battleship at The Corinthia Hotel on March 28, 2012 in London, England.  (Photo by Dave Hogan/Getty Images)

Stunning in every shade

It's official: Rihanna would look amazing even if she wore a mop on her head -- it's hardly fair. The singer has been everything from a fiery redhead to a bubbly blonde, and she even opted for a black and blonde swirl.

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NEW YORK, NY - NOVEMBER 20:  Nicki Minaj visits fuse's "Top 20 Countdown" at fuse Studios on November 20, 2012 in New York City.  (Photo by D Dipasupil/Getty Images)

NEW YORK, NY - MARCH 29:  Recording artist Nicki Minaj attends the Green Auction: A Bid To Save The Earth at Christie's on March 29, 2011 in New York City.  (Photo by Jason Kempin/Getty Images)

"American Idol" Season 12 judge Nicki Minaj arrives for day one auditions at Jazz at Lincoln Center on Sunday, Sept. 16, 2012 in New York. (Photo by Evan Agostini/Invision/AP)

Nicki Minaj arrives at the 53rd annual Grammy Awards in Los Angeles, California, February 13, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: ENTERTAINMENT) (GRAMMYS-ARRIVALS)

All dolled up

Singer Nicki Minaj is a costume queen. She never shies away from vibrant colors or patterns, and her mane is no exception!

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