Pictures of Celebrities and Models on Twitter March 29, 2012

If this week's celebrity social media snaps are any indication, stars are working hard and having fun while doing it. Alexa Chung and Brooklyn Decker traveled across the pond to promote their new endeavors, while Rachel Zoe, Kim Kardashian, and Rachel Roy enjoyed themselves at the opening of Valentino's new store. Lauren Conrad may have topped everyone, however, by playing the part of a pilot and getting some serious air. Click through now to see all of this week's fashionable social media photos.