By InStyle Staff
May 03, 2013 @ 9:30 am
Courtesy of Fox

Aw, Jess! We couldn’t help but smile when we saw Jess Day (Zooey Deschanel) in this week’s prom flashback episode of New Girl  wearing a confection with a triple threat of fabrics—tulle, rosettes, and sequins. Costume designer Deb McGuire told this throwback was supposed to garner just that kind of reaction. “What could be more wonderful than to think of what a Jess prom dress might have been?" McGuire said. Calling her inspiration “Snow White on acid,” McGuire customized a turquoise dress by draping it with layers of tulle. Then, she topped it with flowers and birds to add “pure whimsy.” How perfectly Jess! Find out what else Deschanel wore on

Plus, see the latest news about New Girl!

MORE:• Found It! Jess's Stripe TopAll the latest on Zooey Deschanel’s Hot Pink Shoshanna Dress

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