Instagram first popped up in 2010. Over its relatively short but exceptionally formative six-year existence, it has shaped the way that celebrities communicate with fans, define their brands, and broadcast both private and public moments. But way before Kim Kardashian fully mastered the art of the selfie, and way before fashion and food bloggers were putting professional-level pics on the platform, some of your favorite celebrities were messing around with the do-it-yourself app. Here, you’ll find the first ever posts currently available on the accounts of 35 of our most public celebrities.