His first two albums have sold 5.04 million copies in United States alone .
According to the Recording Industry Association of America ( RIAA ) , he is the ninth - bestselling digital - single artist in the United States with sales of 53.5 million .
artist 's first two albums have sold 5.04 million copies United States   States alone .
According to the Recording Industry Association of America ( RIAA ) , he is the ninth - bestselling digital - single artist in the United States with sales of 53.5 million .