For our favorite Twitter celebrities, it was all about Halloween! Alessandra Ambrosio and Lea Michele both sported White Swan costumes while Jason Wu went the zombie route. Meanwhile, Whitney Port wore head-to-toe leopard print and Brooklyn Decker looked adorable as a giant duck. Click through to see 15 of our favorite fashionable tweeters in costume!
Fashionable — and Spooky — Twitter Pictures of the Week!