On May 12, J.Y. Park wrote on Instagram, "3 days before teacher's day my teacher's song is on the top of the charts again! Congrats! Also to the Unnies members, staff and especially Somi^^"
Kim Hyung Suk is a producer who made numerous hits in the 1990's and 2000's, he has earned the nickname "hit song maker" for making so many numerous hits.