April 16, 2018. According to the introductory information of the query song "Sunshine Rainbow Little White Horse", the song was written, composed and sung by Da Zhangwei. It was released as a single on April 16, 2018, and was later included in Da Zhangwei's May 2018 album. The album "The Best of the World" released on September 18th won the Durian Award for Song of the Year at Qchina's 2018 Music Festival.