Harry Styles' new album, Kiss All the Time. Disco, Occasionally, is out now, and fans cannot have enough. However, the intense attempts to decode the singer's new tracks have begun, and Harry has also given us some hints about which song holds special significance for him. The singer-actor has revealed that the song that means the most to him is the friendship-inspired track titled Carla's Song. Nonetheless, now the question is, who is the song about, and what does it mean?