. . . . . . "Hello Cover Series"@en . . . . "Hello Cover Series featured selected Hello! Project artists covering other songs within Hello! Project. All covers were released digitally and were only available for download on iTunes. All Hello Cover singles are in the UP-FRONT WORKS label."@en . . "Hello Cover Series featured selected Hello! Project artists covering other songs within Hello! Project. All covers were released digitally and were only available for download on iTunes. All Hello Cover singles are in the UP-FRONT WORKS label."@en . . . . . . . . . . . . .