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The world is a pretty small place and several social networking sites prove pretty useful pointing out how many mutual friends you have with someone you just met. But think about the idol world in K-Pop and just how small it is. There are groups where one of the teammates originally was supposed to debut as a member of another group and other instances where the idols were childhood friends.
Either way, they spent their trainee years together and some took pictures to capture the memories.
There are probably a few here you already know and some can come as a surprise. Flip through the gallery to see a few of many celebrity friendships during their trainee days. Feel free to list more friends you know of in the comments below!
