Listen to 快樂牛郎 online. 快樂牛郎 is a Chinese language song and is sung by 達明一派. 快樂牛郎, from the album Legend - Wan Sui! Wan Sui! Wan Wan Sui!, was released in the year 2005. The duration of the song is 4:22. Download Chinese songs online from JioSaavn.