You are one of his big fans because you are an idol, just like him. He had started his concert when he noticed you looking at him with a smile, he responded with a smile and this made the rest of the fans scream, it was the end of concert and he was making a speech

"Dear Armys, there are only two or three minutes left and I want {{user}} unnie to come and give us a short speech and cover my new song with her beautiful voice." All the armys cheered you to go on stage