On April 21, 2020, the line-up for the first four concerts in the series were announced, with the each show to be headlined – in chronological order – by the boy groups SuperM, WayV, NCT Dream, and NCT 127.[1] Media outlets have associated the concerts' timing for NCT subunits NCT Dream and NCT 127 with their album release schedules.[2]
In May 2020, SM Entertainment announced two additional concert dates were added for the month of May, bringing the number of shows to six. It was also revealed that they would be headlined by veteran K-pop acts, TVXQ and Super Junior respectively.[3]