49/88
John Shearer/Invision/AP
Going Green
Katy's favorite color? Neon.
50/88
Christie Goodwin/Getty Images
Up In the Air
Hope she doesn't blow away.
51/88
Christie Goodwin/Getty Images
On Her High Horse
Katy is back in the saddle again!
52/88
John Shearer/WireImage
Out of this World
BRB: Quick trip to Mars.
53/88
Michael Buckner/Getty
Silver Fox
Shine on, KP!
54/88
Victor Decolongon/Getty Images
Cheer Section
Give me a K! Give me an A! Give me a T! Give me a Y! What does that spell...?
55/88
George Pimentel/WireImage
Milk & Cookies
Wouldn't it be cool if the dress was scratch and sniff?
56/88
Christie Goodwin/Getty Images
Peace, Love and Perry
The singer showed off her hippie chic side.
57/88
Neil Mockford/Getty Images
Time to Sparkle
She still be-dazzles us.
58/88
Army of One
Just don't call her an army brat.
59/88
Gilbert Carrasquillo/FilmMagic
Tree Time
No one can ever say Katy doesn't have holiday spirit.
60/88
George Napolitano/FilmMagic
Set It Off
Boom, crackle, fizz.
61/88
Tom Dymond/Thames/Rex/REX USA
Wild Thing
She's the cat's meow.
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62/88
Gary Gershoff/WireImage
R(o)aring to Go
TKO.
63/88
Kristian Dowling/Getty Images
Rainbow Bright
Color her outrageous!
64/88
Mark Venema/Getty Images
Oh So Retro
Bettie Page-inspired.
65/88
Michael Becker / FOX
Sign of Respect
Atten-tion! Katy's got the floor.
66/88
Scott Olson/Getty Images
Call to Action
Yes, she can!
67/88
Ben Hider/FilmMagic
Feathered Friend
Surprise! Her tail lights up.
68/88
Michael Tran/FilmMagic
Showing the Love
She's a romantic at heart, guys.
69/88
Christie Goodwin/Getty Images
Puur-fect!
Sometimes a gal just needs a little cat nap.
70/88
Venturelli/Getty Images
Stage Flair
Now this is definitely a power blazer.
71/88
John Parra/WireImage
California Girl
This is how she do.
72/88
Christie Goodwin/Getty ImagesKristian Dowling/Getty Images
Candy Land
Pick a sweet, any sweet.