On mid-September 2018, a clip of Nguyễn Trọng Tài and Thành Sang (San Ji) singing “HongKong1” around the drinking table was considered as a phenomenon in the Vietnamese music market. “HongKong1” was composed by Nguyễn Trọng Tài and San Ji (two members of Double X music band) according to Lofi music style (Low fidelity) with the slow melody influenced by Jazz and Soul style. These two young people were students at the Economic University of...