Who doesn't know who Kim Soo Hyun is? But did you know that he started acting when he was still in high school and was apparently quite the troublemaker? In this week's Seoulmates Profile, Arianna tells you everything you need to know about Kim Soo Hyun — the big facts, but also the small details that you might not have known.

Did some things in this video surprise you? Which Kim Soo Hyun drama did you like best? Let us know in the comments below, and don't forget to subscribe to DramaFever's YouTube channel for more awesome videos!