On par with the likes of Rihanna and Kim Kardashian, Katy Perry has positioned herself as one of the most watched stars in the world. Born Katheryn Elizabeth Hudson, the Santa Barbara native grew up in a Christian household and sang gospel in high school -- which seems a world away from the sparking-firework-bra-wearing Perry we all know today. Yet, when it comes to style, the singer is a total chameleon; she appears to create different identities that coincide with new eras in her life -- whether it be an album release or a new man.

Even before she struck mainstream success with her 2008 hit "I Kissed A Girl," it was evident that she had an affinity for bright, outlandish clothes from very early on. She soon took a similar approach to her beauty look. While her hair is naturally light, she entered a period of extreme hair color experimentation around the time she was with former husband Russell Brand. The singer dyed her hair more colors than we could keep track of -- trying everything from dark lavender, pinkish-blonde, Smurf blue and deep purple.

And now that quirky, equally over-the-top Brand is out of the picture, the "Teenage Dream" singer has once again changed course, style-wise. Since she's been spotted with on-again, off-again boyfriend John Mayer, she's been wearing a decidedly more low-key look (jean jackets, flat boots, even a sweat suit, of all things). Is her new guy to blame or could she actually have run out of ways of reinventing herself? Either way, we doubt Billboard's Woman of the Year will keep this look for long.

As Perry turns 28 on October 25th, we're taking a look back at the star's many technicolor outfits along the way.

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  • 2004

  • 2004

  • 2004: American Music Awards

  • 2005: Esquire Magazine Event

  • 2006: Vanity Fair Event

  • 2007: Fashion Rocks

  • 2008: Chanel Boutique Opening

  • 2008: MTV TRL

  • 2008: Travis McCoy's Birthday Party

  • 2008: Rok Las Vegas Performance

  • 2008: VMA After-Party

  • 2008: MTV VMAs

  • 2008: Berlin Concert

  • 2008: Patrick DeMarchelier Exhibit

  • 2008: Fashion Cares Event

  • 2008: MTV Europe Music Awards

  • 2009: Grammy Awards

  • 2009: Paper Magazine's Beautiful People Party

  • 2009: "The Model As Muse" Met Gala

  • 2009: House of Molinari Birthday Celebration

  • 2009: MTV Video Music Awards

  • 2009: MTV Europe Music Awards Press Conference

  • 2009: MTV Europe Music Awards

  • 2010: Vanity Fair Oscar Party

  • 2010: Met Gala

  • 2010: MTV VMAs

  • 2010: Nickelodeon Kids' Choice Awards

  • 2010: MTV Movie Awards

  • 2011: Grammy Awards

  • 2011: 'Smurfs' Premiere

  • 2011: MTV VMAs

  • November 2011

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  • November 2011

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  • November 2011

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  • December 2011

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  • December 2011

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  • February 2012

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  • February 2012

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  • February 2012

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  • February 2012

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  • February 2012

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  • February 2012

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  • March 2012

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  • March 2012

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  • March 2012

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  • March 2012

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  • April 2012

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  • May 2012

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  • May 2012

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  • June 2012

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  • June 2012

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