photo from VersaEmerge's flickr

Hide & Seek Clothing Black Logo Pull-Over Hoodie – $42 [exact]

photographed by Mike Lerner & Brandon Aviram

here’s Sierra’s exact bodysuit and I believe the underwear is exact as well:

Katy Perry out in Los Angeles on January 20, 2010 – photo: Pedro Andrade/ Bret Thompsett, PacificCoastNews.com

French Connection Lily Dress – $80 [exact]

this is the best picture I can get of these shoes, and it’s impossible to tell if she’s wearing sneakers or oxfords like these, but the colors are definitely right.

Aldo Lahaie Oxfords in Pink/Black

thanks Alexandria:)

exact: Every Monday Matters You Matter Wristband – $20 for 5

(since these only come in packs, I’m guessing this was a gift from a fan)

Mindy White of Lydia

Express Studded Sexy Stretch Tee – $29.50 [similar]

Hey Monday photoshoot

Urban Outfitters Canvas Leather Lace Up – $20.00 [exact]

Sierra Kusterbeck candid

Miss Sixty Black Wool-blend Double Breasted Coat – $144 [exact]

Hey Monday promo shot

Charlotte Russe Suspender And Stripe Tank – $21.99 [similar]

Katy Perry arrives at the Glamour Women of the Year Awards at Berkeley Square in London on June 2 2009 – photo: PacificCoastNews.com

The Foley + Corinna Bow Dress pictured below is exact, but in a royal blue instead of Katy’s teal shade.
I believe the exact purse is by Lulu Guinness, but the closest one on their website is metallic red (and £225…eek!)