Changing Styles: Katy Perry

1. Katy Perry as a teen

Katy Perry was born Katheryn Elizabeth Hudson and is a natural blonde! How cute does she work in this photo from her early teens? Pic: WENN

2. Katy Perry at the age of 19

Katy was born in Santa Barbara, California and started singing Gospel music before she turned to pop.

3. Katy Perry at 21

21 year old Katy in a demure dress and no makeup. The singer would soon change her style and become the Katy we know and love

4. Katy Perry arrives in Los Angeles

Katy released her first album, under the name Katy Hudson, which failed to make it into the charts. In 2007 she was on her fourth record deal and changed her name to Katy Perry.

5. Katy Perry the folk singer

Katy Perry in her early folk incarnation

6. Katy Perry with a mullet

Katy Perry even sported a mullet at the age of 21. Let's not say that this girl is afraid of experimenting

7. Katy Perry releases 'One of The Boys'

Katy Perry attends the record release party for her album 'One of the Boys' at Capitol Records on June 17, 2008 in Los Angeles, California.

8. Katy Perry becomes a star

23 year old Katy Perry plays US music festival South By South West. In 2008 Perry released her first successful album, 'One of The Boys' which propelled her to super stardom thanks to the single 'I Kissed A Girl'

9. Katy Perry finds her style

Katy Perry, age 23, finds her colourful and cartoony style and never looks back...yet...

10. Katy Perry is pretty in pink

Perry starts experimenting with shapes and colours. We love this pretty pink prom dress - very Katy!

11. Katy Perry does 'dress down'

We are used to see her in amazing dresses and makeup but Perry can do dressed down in a hoody and plaid shirt well

12. Katy Perry performs in New York

Perry performs at Gallery Bar on May 16, 2008 in New York City. By this stage Perry has started to enjoy mainstream success

13. Katy Perry wins a BRIT Award

Katy bags a BRIT award in 2009. The star won the International Female Solo Artist statuette

14. Katy Perry

The sunnies are on as Katy belts out Hot And Cold.

15. Katy Perry meets Minnie

Katy Perry poses with Minnie Mouse at Disney's Hollywood Studios in Lake Buena Vista, Florida. Photo: Disney

16. Katy Perry at the Teen Choice Awards 2010

Katy Perry channels TV show Glee and dresses like a 'geek' at the Teen Choice Awards 2010

17. Katy Perry with blue hair

Katy Perry poses with her iconic blue wig in 2010

18. Katy Perry meets Russell Brand

Katy Perry met British actor and comedian Russell Brand when she filmed a cameo for the film 'Get Him To The Greek' in 2008. The scene was cut from the film, but the pair met again a year later at the 2009 MTV Video Music Awards and quickly started dating.

19. Katy Perry performs at the Grammy Nominations

Katy Perry performs at the Grammy Nominations Concert, November 30, 2010 at Nokia Plaza at LA Live in downtown Los Angeles. We love Katy's all silver outfit!

20. Katy Perry as Jessica Rabbit

Katy Perry in that dress. What can we say? She looks va va voom and amazing!

21. Katy Perry at The People's Choice Awards

Katy Perry wins big at The People's Choice Awards in 2011

22. Katy Perry launches Purr

Katy Perry launches her first fragrance, Purr

23. Katy Perry, her grandmother and Russell Brand

Katy Perry and Russell Brand Visit Planet Hollywood Resort And Casino to celebrate Katy's grandmother's 90th Birthday in 2011.

24. Katy Perry live in Paris

Katy Perry performs live at Le Zenith, in Paris, France in one of her fabulous outfits

25. Katy Perry at Paris Fashion Week

Katy Perry at Jean-Charles de Castelbajac Ready-To-Wear Fall-Winter 2011-2012 fashion show held at Le Pavillon Concorde, in Paris, France. Pic: PA Photos

26. Katy Perry and Robert Ackroyd

Following the split and divorce from Russell Brand, Katy Perry started dating Robert Ackroyd, guitarist with Florence + The Machine. Katy and Rob met at Coachella Festival in April 2012 and are said to have an on and off relationship, due to the fact that they live in different countries. Picture: Splash

27. Katy Perry channels The Great Gatsby

Never one to miss a trend, Katy Perry dresses in a 20s outfit for the 2012 City of Hope Gala event in Los Angeles. We love the dress, the makeup and her purple hair!

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Changing Styles: Katy Perry