I do not think it s mandatory for us to speak the new generation's "street langage", furthermore she is a french (international fame) singer, so makes sense for me to have her on this show. As @kalidestroyer mentioned it, her show made an excellent French depiction with the military musical

Hello Moon Joo,
I did not even know you could be a Korean adoptee without any proper citizenship! Unbelievable, I don t understand how US government did not care of this too??? I knew about the illegal adoptions affair but still thought the citizenship was certainly aquired regarding adoptees.