Guess the song title by looking at the idol fancam photo

The reason I wrote this piece

First of all, I'm really sorry that a piece like this made it into the rankings. Actually, the reason I wrote this piece is because of the recent Alps controversy, and I've lost interest in writing, so I started writing quiz pieces like this. The response was good at first, so I've continued to write these types of pieces. And I'm writing this for you little ones to try it out when you're bored. Also, I wrote about star-tees earlier, and I think you were upset and surprised because it was the first time I'd been star-teesed. I'm sensitive to these kinds of things... I won't mind star-tees in the future. And I'll try to write pieces with a story, not meaningless pieces like this. Thank you always, subscribers :) Thank you always, anti-hat fans!
Then have a nice day❤