A few minutes ago my mom told me "that korean guy that dances is going to be on the show.". She watched it and then told me "did you know he has the most seen video on youtube?" Keep in mind that my mom barely knows how to use a computer, is in her 50s, and she originally learned he existed because my sister showed her the video about a month ago.
I asked her what she thought and she said she liked how the song sounded and how he danced. I am now convinced that she song is the biggest thing ever. If people doubt that then they're in denial. My mom is proof.