After Yonghwa performed, J.Y. Park asked Rose what she thought of guys with a nice voice who plays the guitar well because Black Pink members previously mentioned Rose's ideal type. She replied, "He was really cool. I really respect him, he plays the guitar really well." Yonghwa then suggested Rose play the guitar because he had seen her play before. This led to the two indivdiuals spontaneously collaborating together without any practice.
The two singers beautifully sang "Officially Missing You" together. Despite the two singers never working together beforehand, they impressed the audience with their great teamwork.
Check out the performance in the clip above!