Octopus harmonic is Zhang, arm harmonic is Bi, orange juice harmonic is morning, together is Zhang Bichen.

Zhang Bichen (张碧晨) (Diamond), born on September 10, 1989 in Tianjin, China, is a Chinese mainland pop female singer who graduated from Tianjin Foreign Studies University.

In 2012, Zhang Bichen participated in the "K-POP World Celebration" singing competition and won the championship of the Chinese region; in the same year, she represented China to participate in the finals in Korea and won the most outstanding award. 2013, she debuted as a member of the South Korean girl group Sunny Days. 2014, she won the award of the Zhejiang Satellite TV singing talent show "China". In 2014, she won the annual championship of The Voice of China Season 3, a singing talent show on Zhejiang Satellite TV, and after the competition, she signed with Dreamsound of course to officially debut in mainland China