In 2008
This was around the time she released One of the Boys, the album that included "I Kissed A Girl" and "Hot n Cold" and "Waking Up In Vegas." So, it was her pin-up phase, and right around the time people were like, "She is Zooey Deschanel's doppelganger except Katy never wears pants and Zooey only wears black tights." Those are such sad, lonely thigh feathers.
in 2010
This is the era of "Teenage Dream," "California Gurls," and the beginning of her marriage to Russell Brand. She'd slightly changed her flavor of kitsch. Her hair looks like a gender reveal party: It's twins! One of each!
in 2011
And here we have her Imogen Heap-meets-Strawberry Shortcake phase.
This looks like the moment RIGHT before she realizes someone has murdered her with geometry.
This will always make me laugh. In a good way. Man, Katy Perry had her fun moments.
In 2011, at a post-party
I do not even know why that blouse is happening, or how it fit into her plans.
In 2012
This was The Divorce Year, and she does seem glum. I wish she'd let the designer finish the dress.
In 2013
You are not Mel B. Don't even try.
Katy Perry
This is my favorite, though. It was her homage to the year Britney and Justin wore their denim ensembles, and this deliberately stagey photo CRACKS ME UP. Oh, Katy. We had such good times once. Please bring some again.