While showbiz can be a cutthroat industry, some celebs have nevertheless made lasting friendships that are ride or die. Here are seven unexpected friend groups comprising actors and pop idols in the South Korean entertainment scene. [embed]https://www.youtube.com/watch?v=G5g-P2WJKgY[/embed] They don't have an official name for their friend group, but they have become so loved that fans came up with one for...