Who is popular today?

Katy Perry sure has changed since 2002. 
Before we knew her as queen of the candy-colored hair and wearer of whipped cream bras, the “American Idol” judge was a brunette Zooey Deschanel doppelgänger singing Christian rock music. In 2001 she released her debut album, “Katy Hudson,” but it wasn’t until 2008′s “One of the Boys” that she really made her mark. 
Since then, Perry, 33, has gone through a number of style changes, taking inspiration from every decade since the 1950s. As she first gained popularity, the pop star often sported corseted dresses and bodysuits, and she wasn’t afraid to play with color. Moving into the next decade, Perry often appeared in ultra-glam gowns like the red and gold number she wore to the 2010 Vanity Fair Oscar Party. 
In more recent years, Perry has kept things playful, never shying away from bold colors or plenty of sparkle. She has also flaunted virtually every hair color and length imaginable. 
The “Chained to the Rhythm” singer continues to take style risks ― as she did with a leopard-print Versace ensemble on a recent episode of “Jimmy Kimmel Live!” ― and we’re betting she won’t stop.
Check out her style evolution below:

2002

Posing during a portrait session on Sept. 25, 2002, in West Hollywood, California.

Lester Cohen via Getty Images2004

At Clive Davis' Celebration of the American Music Awards in Beverly Hills, California, in November 2004.

Jean-Paul Aussenard via Getty Images2005

At Esquire's fourth annual Oscar viewing party hosted by Jennifer Love Hewitt in February 2005

Albert L. Ortega via Getty Images2006

At the Sony BMG Grammy party at The Hollywood Roosevelt Hotel on Feb. 8, 2006, in Hollywood, California

Vince Bucci via Getty Images2006

At Vanity Fair's 2006 Svedka Erotica Reading Series on April 20, 2006, in Hollywood, California

J. Vespa via Getty Images2006

At Lucky Magazine's April 2006 Hosts party at Milk Boutique to celebrate its Los Angeles shopping guide

Jeffrey Mayer via Getty Images2006

Attending the launch of Nintendo's Wii in November 2006

Jeffrey Mayer via Getty Images2007

At the 2007 EMI Post Grammy Party at Boulevard 3 in Los Angeles

Mark Sullivan via Getty Images2007

At Rock & Republic's Fashion Rocks pre-party and after-party at Eyebeam Atelier and Hiro NYC on Sept. 5, 2007

Patrick McMullan via Getty Images2008

At Betsey Johnson's fall 2008 show during Mercedes-Benz Fashion Week on Feb. 4, 2008, in New York City

Shawn Ehlers via Getty Images2008

At Z100's Zootopia 2008 presented by Izod Fragrance on May 17, 2008, in New Jersey

Jim Spellman via Getty Images2008

At Spike TV's second annual Guys Choice Awards held at Sony Studios on May 30, 2008, in Culver City, California

Frederick M. Brown via Getty Images2008

At the release of her album "One of the Boys" on June 7, 2008, in Southampton, New York

Tana Lee Alves via Getty Images2008

At the Kira Plastinina U.S. Launch Party on June 14, 2008, in Los Angeles

Jason LaVeris via Getty Images2008

At the release party for "One of the Boys" at Capitol Records on June 17, 2008, in Los Angeles

Jesse Grant via Getty Images2008

At Rok Las Vegas to perform inside the New York-New York casino on Aug. 30, 2008

Bruce Gifford via Getty Images2008

At the 2008 MTV Video Music Awards with Miley Cyrus on Sept. 7, 2008

Patrick McMullan via Getty Images2008

Wearing a Jean Charles de Castelbajac dress at the MTV Europe Music Awards, held at the Echo Arena on Nov. 6, 2008, in Liverpool, England

Getty Images via Getty Images2009

On the red carpet at VH1's 14th annual Critics' Choice Awards at the Santa Monica Civic Auditorium on Jan. 8, 2009, in Santa Monica, California

Kevin Mazur via Getty Images2009

Wearing a Tommy Hilfiger gown at the 2009 Met Gala in New York City on May 4, 2009

Kevin Mazur via Getty Images2009

At the official opening ceremony of Life Ball 2009 on May 16, 2009, in Vienna, Austria

Patrick McMullan via Getty Images2009

Wearing a silver corset dress by The Blonds at the 2009 MTV Video Music Awards at Radio City Music Hall in New York City on Sept. 13, 2009

Michael Loccisano via Getty Images2010

Wearing Zac Posen at the 52nd annual Grammy Awards held at the Nokia Theater on Jan. 31, 2010, in Los Angeles

Gregg DeGuire via Getty Images2010

With her then-fiancé, comedian Russell Brand, arriving at the 2010 Vanity Fair Oscar Party at Sunset Tower on March 7, 2010, in West Hollywood, California

Michael Buckner via Getty Images2010

Wearing a CuteCircuit LED gown at the Met Gala to celebrate the opening of the "American Woman: Fashioning a National Identity" exhibition at The Metropolitan Museum of Art on May 3, 2010, in New York City

Larry Busacca via Getty Images2010

Wearing a sparkly Zuhair Murad dress at the 2010 MTV Movie Awards at Gibson Amphitheatre on June 6, 2010, in Universal City, California

Jeff Kravitz via Getty Images2010

In a Marchesa dress at the 2010 MTV Video Music Awards at Nokia Theatre L.A. Live on Sept. 12, 2010, in Los Angeles

Frederick M. Brown via Getty Images2011

With then-husband Russell Brand at the 53rd annual Grammy Awards held at Staples Center on Feb. 13, 2011, in Los Angeles. Perry was wearing an angelic gown by Giorgio Armani.

Jason Merritt via Getty Images2011

At the premiere of "The Smurfs" at The Ziegfeld Theater on July 24, 2011, in New York City

Jemal Countess via Getty Images2011

In Atelier Versace at the 2011 MTV Video Music Awards held at Nokia Theatre L.A. Live on Aug. 28, 2011, in Los Angeles

Jon Kopaloff via Getty Images2012

Wearing Elie Saab Couture at the 54th annual Grammy Awards at Staples Center on Feb. 12, 2012, in Los Angeles.

Steve Granitz via Getty Images2012

At the 20th Annual Elton John AIDS Foundation Academy Awards viewing party on Feb. 26, 2012 in West Hollywood, California. Perry wore a gown by Blumarine.

Michael Tran via Getty Images2012

Wearing a Twenty Cluny dress at the NARM Music Biz 2012 awards dinner party at the Hyatt Regency Century Plaza on May 10, 2012 in Century City, California. 

Gregg DeGuire via Getty Images2012

Wearing a velvet Dolce & Gabbana dress at the premiere of "Katy Perry: Part Of Me" at Grauman's Chinese Theatre on June 26, 2012 in Hollywood, California.

Michael Buckner via Getty Images2013

Wearing a Valentino dress backstage during the 2013 People's Choice Awards at Nokia Theatre L.A. Live on Jan. 9, 2013 in Los Angeles.

Kevin Mazur via Getty Images2013

At "The Smurfs 2" press junket on April 22, 2013 in Cancun, Mexico. 

Vera Anderson via Getty Images2013

Wearing Dolce & Gabbana at the Costume Institute Gala for the "PUNK: Chaos to Couture" exhibition at the Metropolitan Museum of Art on May 6, 2013 in New York City.

Dimitrios Kambouris via Getty Images2013

At the premiere of Columbia Pictures' "Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. Perry wore a a blue dress by Tadashi Shoji. 

Steve Granitz via Getty Images2014

At a U-Express Live 2014 press conference at Saitama Super Arena on March 2, 2014 in Saitama, Japan. She was wearing a Moschino dress. 

Jun Sato via Getty Images2014

Perry and rapper Riff Raff wore matching Atelier Versace denim ensembles -- an ode to Britney Spears and Justin Timberlake -- for the 2014 MTV Video Music Awards at The Forum on Aug. 24, 2014 in Inglewood, California. 

Jeffrey Mayer via Getty Images2015

Wearing Zuhair Murad Couture at the 57th Annual Grammy Awards at the Stapes Center on Feb. 8, 2015 in Los Angeles.

Jason Merritt via Getty Images2015

With Jeremy Scott at the "China: Through The Looking Glass" Costume Institute Benefit Gala at the Metropolitan Museum of Art on May 4, 2015 in New York City. Both wore matching Moschino ensembles. 

Larry Busacca via Getty Images2016

Wearing a Prada gown at the 73rd Annual Golden Globe Awards at the Beverly Hilton Hotel on Jan. 10, 2016 in Beverly Hills, California.

John Shearer via Getty Images2016

Wearing a dramatic Prada gown at the "Manus x Machina: Fashion in an Age of Technology" Costume Institute Gala at the Metropolitan Museum of Art on May 2, 2016 in New York City. 

George Pimentel via Getty Images2017

Wearing Tom Ford at the 59th Grammy Awards at Staples Center on Feb. 12, 2017 in Los Angeles.

John Shearer via Getty Images2017

At the Human Rights Campaign's 2017 Los Angeles Gala Dinner on March 18, 2017 in Los Angeles.

Todd Williamson via Getty Images2017

Wearing a Maison Margiela Couture gown at the "Rei Kawakubo/Comme des Garçons: Art Of The In-Between" Costume Institute Gala at the Metropolitan Museum of Art on May 1, 2017 in New York City.

Kevin Mazur via Getty Images2017

At the Chanel Haute Couture fall-winter 2017-18 show as part of Haute Couture Paris Fashion Week on July 4, 2017 in Paris. She was wearing Chanel.

Bertrand Rindoff Petroff via Getty Images2017

In a white gown by Stéphane Rolland at the 2017 MTV Video Music Awards at The Forum on Aug. 27, 2017 in Inglewood, California.

Gregg DeGuire via Getty Images2018

At the ceremony honoring Minnie Mouse's 90th anniversary with a star on the Hollywood Walk of Fame on Jan. 22, 2018 in Hollywood, California.

Axelle/Bauer-Griffin via Getty Images2018

Wearing a Stella McCartney gown at Stella McCartney's autumn 2018 collection launch on Jan. 16, 2018 in Los Angeles.

Steve Granitz via Getty Images2018

Wearing a Versace ensemble for her March 5, 2018 appearance on "Jimmy Kimmel Live!"

Randy Holmes via Getty Images