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From "Dirrty" to diva, the singer has proven herself to be quite the chameleon over the years. Here, a look back at her hair and makeup choices. Don't miss our exclusive interview and cover story with Christina!

Jan 10, 2012

Fred Duval/FilmMagic

From "Dirrty" to diva, the singer has proven herself to be quite the chameleon over the years. Here, a look back at her hair and makeup choices. Don't miss our exclusive interview and cover story with Christina!

Fred Duval/FilmMagic

September 1999

With her infectious single "Genie in a Bottle," Christina burst onto the scene in a big way looking every bit the pop princess—bleach blonde hair and all.

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S. Granitz/WireImage

November 2000

Trying to shake that sugary-sweet image, "Xtina" toughened up her look a bit with some colorful highlights, crimps, and loads of kohl eyeliner.

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Vinnie Zuffante/Getty

February 2001

The singer switched up her style at the 2001 Grammy awards—that nose stud is new, as well as her head full of multi-colored cornrows!

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S. Granitz/WireImage

April 2001

Holy 'fro! This eye-catching "Lady Marmalade" look made its debut at the 7th Annual Blockbuster Entertainment Awards in Los Angeles.

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Dave Hogan/Getty

June 2001

At the 2001 MTV Movie Awards, Christina took her edgy new look up another notch, complete with crazy curls, a vampy dark lip, and glitter eyeshadow aplenty.

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Dave Hogan/Getty

February 2002

These Marilyn Monroe-inspired curls Christina flaunted at the 2002 Grammy Awards were a much more mature look for the songstress.

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Mark Mainz/Getty

August 2002

The "Dirrty" days are upon us—Miss Aguilera sported black streaks and ultra-thin eyebrows at the 2002 MTV Video Music Awards.

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Christina Radish/Getty

April 2003

This jet-black 'do was quite a departure for Christina, but we're digging her slicked-back ponytail!

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Dan MacMedan/WireImage

February 2004

The singer held on to the raven locks for a '20s-inspired updo at the 2004 Grammy Awards. How glam!

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Jamie McCarthy/WireImage

August 2004

And back to blonde we go—these short platinum curls introduced the world to a more demure Christina.

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KMazur/WireImage

February 2006

The pop princess was the very picture of a blonde Hollywood bombshell at the 2006 Grammy Awards. How perfect is her red lip?

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KMazur/WireImage

August 2006

This gorgeous look could be right out of The Great Gatsby, don't you think? With a bordeaux lip and super long lashes, Christina simply glowed at 2006 MTV Video Music Awards.

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Jeff Kravitz/FlimMagic

February 2007

The songstress brought back the '50s-inspired glamour with these voluminous curls at the 2007 Grammy Awards.

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Kevin Mazur/WireImage

September 2008

The sleek bangs and statement makeup were a completely new look for Christina when she stepped out at the 2008 MTV Video Music Awards.

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Denise Truscello/WireImage

December 2009

This sharp bob and severe eye makeup are so '80s — in the best way possible.

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Jason Merritt/Getty Images

June 2010

We love the modified pompadour Christina rocked at the 2010 MTV Movie Awards.

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Michael Tran/FilmMagic

March 2011

Back to basics! As one of the hosts of NBC's "The Voice," Christina has been sporting a more natural beauty look these days, with loose waves and a subtle cat-eye.

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