첫사랑(CSR)/음반 틀:첫사랑(아이돌) L'heure Bleue HBD To You HBD To You (Jersey Club Remix) HBD To You (Sped Up Ver.) HBD To You (Midnight ver.) L'heure Bleue : Prologue Sequence : 7272 Sequence : 17& DELIGHT(첫사랑) 첫사랑(아이돌)