Eight years old. According to Sina News, as of August 22, 2023, Potato Kingdom Rainbow Sugar was 8 years old. The name of Potato Kingdom Rainbow Sugar is Wang Ruoyi, the keyboard player of Butterflies. At the age of three and a half, he began to record many music programs with his father in the band, and joined the potato kingdom small band at the age of four and a half. Father Wang Guanqi (Mr. Potato) graduated from the Electronic Composition Department of the Central Conservatory of Music. 20 17 potato kingdom small band was established, creating three children's music programs with happy originality, heart-wrenching cover and small musicians.