What's Yong Er's real name?

Yong Er, formerly known as Chen Jiaxin, is a Hong Kong female singer. Born in Hong Kong, 1990 immigrated to Singapore with his parents and family, and lived in Singapore 15, and graduated from the accounting department of Nanyang Technological University in Singapore in 2005. In the same year, he returned to Hong Kong to participate in the "2005 King Rookie Singing Contest" and won the runner-up and the Best Style Award. Later, he entered the music scene and joined the Music Plus of King Entertainment Group Co., Ltd. Yong Er was regarded as the successor representative works of his classmate Joey Yung, including Induction, Daiyu Laughed, and Unintentional Singing.