It is a song composed by Zhao Zhen and sung by Mu Lin. The song was released on August 8, 2017 and included in the album of the same name, Happy Little Sheep. Mu Lin has gained attention for her unique voice and cute image. With an upbeat melody and warm lyrics, the song describes the story of a lamb growing up happily in a happy environment. Mu Lin's singing conveys this joy and warmth to the listener and has become one of many favorite children's songs.