"Smile" is a song written and composed by Yang Xiaozhuang, sung by Yang Xiaozhuang, released on April 8, 2020, included in the album of the same name, "Smile", the lyrics of the song: the day I parted from you I swore that I would no longer stay in love with you, and then I walked for many years, and once again picked up the photo, I'm like a bird waiting for the return of the swallows, from the north to run love to go to the south, and I'm afraid of the lonely Rainy days, wet me to the passing of the emotions, smile towards the grass, say hello to the strange smiling face, smile at the sun every day.