According to qq Music, the original singers of Congratulations are Yao Li and Yao Min. This song was published on 1945. It was originally written to celebrate the victory of War of Resistance against Japanese Aggression, China, and gradually evolved into a New Year message. This song is very popular among Chinese all over the world because its name and lyrics are related to the New Year celebrations.
Classic lyrics: Congratulations, congratulations, it's good news that winter is over. The warm spring breeze will awaken the earth.