The above photo was posted on the group's official Twitter account with the message, "It feels like we're on an all-women's college trip~Here's a quiz for all the Mine! Do you think Nine Muses ate beef that would only serve 9 people?"

SEE ALSO: SHINee's Jonghyun puts to rest rumors of him enjoying a movie date with Nine Muses' Kyung Li

Fans commented, "Wow, it's already been 3 years since they've been together," and "Their poses are so cute."