Train of Thought
Somebody's feeling blue!. K.P. rocks a a baby-blue Elie Saab three-quarter-sleeve gown to go with her electric blue updo at the 2012 Grammys.
Matchy Matchy
Think pink! The California Gurl matches her hair to her dress in this Dolce & Gabbana strapless lace gown.
Divalicious
Awww yeah, the singer brings back her vintage funky style at the 2011 American Music Awards in this Vivienne Westwood strapless gown, lavender hair and blue Jimmy Choo heels.
Rain or Shine
She takes on an Asian-inspired look for the VMAs black carpet, wearing this mini paired with bright pink strappy heels and a paper umbrella for good weather measure.
Kat Call
Debuting her perfume, Purr, the singer rocks a striped Valentino cardigan dress with Miu Miu shoes and her new hair color.
Prismatic
Perry's purple Purr-fection at her Australian fragrance launch in this classy Versus cocktail dress with Christian Louboutin peep-toes.
This Is How She Does
Katy shows off one of her quirkier picks with this puffy sleeve Jean-Charles de Castelbajac dress, paired with black tights and purple platforms.
The Blues
Très chic! Katy dresses with Parisian flair at the Jean-Charles de Castelbajac runway show but adds her own spin with bright blue hair.
Grammys Glam
She looks angelic in this Armani Privé dress accessorized with Mother Plucker angel wings at the 2011 Grammy Awards.
Cotton Candy
The "I Kissed a Girl" singer gives us classic Katy in this flouncy Betsey Johnson dress at the People's Choice Awards.
Tamed
Katy keeps it tame (Read: no blue hair, LED lights or whipped cream bras) at the Change Begins benefit in NYC in this single-shoulder Issa print dress.
Strike Gold
Perry goes for the gold, literally, at the Grammy nominations concert in this Georges Chakra dress with Brian Atwood pumps.
Tres Chic
Katy cleans up nicely for the American Music Awards in a strapless Badgley Mischka dress and killer Brian Atwood pumps. Simply stunning.
Purr-fection
Kitty Perry strikes a pose to launch her new fragrance Purr in London wearing a purple satin Miu Miu dress.
Candy Couture
Katy tops her blue Christian Louboutins and bubble-gum mini with a pink floral Blonds corset at the Victoria's Secret show.
Ticket For One
The singer's guaranteed admittance to the 2010 MTV EMAs in Madrid thanks to this sequined Admit One dress from Jeremy Scott.
Ogle Over This
The "Teenage Dream" singer gets artistic with her fashion pick for a show in Warsaw, Poland, with this wildly printed dress from Belle Sauvage.
Racy Lady
She picks a racy Marchesa design with blue and purple streaks for the MTV VMAs.
Dazzling
The "I Kissed a Girl Singer" sparkles in this Jenny Packham metallic mini at X Factor auditions in Dublin.
Smurfette
What would Papa Smurf say? Taking her role as Smurfette seriously, Katy shows up to the 2010 MTV Movie Awards with shiny blue hair and a nearly nude Zuhair Murad sequined mini.
High Note
The singer steals the spotlight (literally) at the Metropolitan Museum of Art Costume Institute Gala in a light-up dress by CuteCircuit.
Glam Gal
Strategically placed pasties keep Perry's Zac Posen outfit PG at the 2010 Grammy Awards.
Ruffled Feathers
Katy chooses a feathered Jenny Packham frock to host the 2009 MTV European Music Awards.
Presley-ing Matters
Katy goes for a one-of-a-kind Elvis Presley creation during elimination night on the eighth season of American Idol.