On Thursday morning, four of the six Friends (Courteney Cox, Lisa Kudrow, Matt LeBlanc and David Schwimmer) posted identical tributes on Instagram in honor of the hit comedy's 25th anniversary, which is coming up on Sunday. That left two who didn't post a tribute. Of the two, Jennifer Aniston isn't on social media. But Matthew Perry is, with a verified Twitter account. On Thursday night, Perry attempted to tweet an image that was likely a Friends tribute. But he instead posted the image's file name and root directory, prompting Kudrow to tweet in response: "Oh how perfect."