If Jennifer Garner's latest appearance could be summed up in one Mean Girls quote, it would be: "But you're like, really pretty." The actress and cofounder of Once Upon a Farm looked absolutely stunning as she attended Vanity Fair's Founders Fair 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.