If you don't know already, 25-year-old Lex O’Brien is the Insta-model to follow now. Between hitting Paris and South Africa this summer, Lex also managed to learn Korean and star in a K-Pop music video (which involved kissing Korea’s answer to Justin Bieber, FYI). You’re already hooked right? Read on to get to know the Californian a little better and see how she styled up her #AsSeenOnMe looks…