Copyright issues. According to Sohu Entertainment Network, Mayday sang directly to the end without copyright, which made it impossible to give the copyright to the singer and cover it. Mayday, a pop rock band in Taiwan Province Province, China, was founded on March 29th, 1997. It consists of five members: Wen Shangyi (Monster), (A Xin), (Stone), Cai (Martha) and (Guan You).