On July 2015, UP10TION made its official debut by introducing each member, one by one, through their show Masked Rookie King, also known as King of Masked Rookie UP10TION, which is a parody of MBC's King of Mask Singer.
В июле 2015 года каждый член UP10TION дебютировал и был представлен один за другим через шоу Masked Rookie King, также известное как King of Masked Rookie UP10TION, который является пародией на King of Mask Singer от MBC.