INFINITE Nam Woo-Hyun released a new song in surprise.

Nam Woo-Hyun's agency Woollim Entertainment unexpectedly released the teaser for Nam Woo-Hyun's digital single "When Fall Comes" on its official YouTube channel on Oct. 31.

The digital single "When Fall Comes" was first performed at a successful fan meeting at KBS Arena in Gangseo-gu, Seoul on Oct. 19, drawing attention from fans with its surprise release at the end of the performance.

Nam Woo-Hyun, who is usually famous for his unusual fan love, said he wrote the song himself during two solo concerts through a fan meeting, adding, "I've come to write this autumn to always wait for you."

Nam Woo-Hyun, who has established himself as a male leading vocalist with a rich and mellow tone, and is showing the side of a "perfect singer-songwriter" in every album, from writing to composing and producing songs.

It is expected to be a big gift for fans who have been waiting for his voice with his new song "When Fall Comes," as he has melted stories that he wants to tell his loved ones through music and lyrics this time.

Nam Woo-Hyun's digital single "When Fall Comes" was released on various online music sites on Nov. 3.