If Jennifer Garner [1]'s latest appearance could be summed up in one Mean Girls [2] quote, it would be: "But you're like, really pretty." The actress and cofounder of Once Upon a Farm [3] looked absolutely stunning as she attended Vanity Fair's Founders Fair [4] in NYC on Thursday. Aside from passionately talking about growing organic fruits and vegetables with editor Krista Smith on stage, Jen showed off her incredible figure in a LBD. And honestly, OMG. From her hair to her makeup to her incredibly toned arms, I literally can't stop staring. She really is a true beauty, inside and out.