Jeremy Lau 柳應廷 Born 20 November 1992 Professionally Known As Jer Is A Singer And Actor Based In Hong Kong. He Became A Member Of The Hong Kong Boy Group Mirror After Finishing In The Top 20 Of ViuTV's Reality Talent Competition "Good Night Show - King Maker" In 2018. His Debut Single The Soft Rock Ballad "Water Story" 水刑物語 Was Released On February 29 2020.