"Big Red Jujube is Sweet and Fragrant" is a song sung by Black Duck, written by Yang Yongyi and composed by Yan. Published on May 20th, 2005. The Black Duck Singing Group was founded in 1992, which is the first harmony group in China and the earliest harmony group in China. Formal music education and systematic training have cultivated their good musical quality. After the establishment of the singing group, it quickly attracted the attention of pop music. The black duck singing group is best at digging their hearts with beautiful and harmonious voices.