Momo.
According to Baidu Encyclopedia, "Song of Paradise Island" is a song sung by Momo, with lyrics written by LizzRobinett and music composed by Ho-ong-i (), and was released on February 10, 2020.
Part of the song: Ding dong, I have a secret, tell you quietly, welcome to the entrance of heaven, Ding dong, someone is ringing the doorbell, who is outside, treating pranks as a game, listen Who is crying, look who is whispering, there are a pair of eyes outside the window, they are watching you all the time.