What is your favourite skz song?

It can be anything. Even a solo or a double or group anything. I honestly love: Piece of puzzle (Seungmin, Changbin). My two biases singing together. Piece of art. Also The songs you give me If I haven't listened to them yet I will tell you how much I like them.

seungmin and changbin

I would love if you could tell me how much you like piece of puzzle. Thanks