Complex sentence: Like many of Hardy's earlier albums, it was released with no title, except for her name on the cover, therefore has become also known by the title of the most successful song on the album, "Tous les garçons et les filles".
Split into simpler sentences: Like many of Hardy's earlier albums, it was released with no title, except for her name on the cover. The album has therefore colloquially become known by the title of its most successful song, "Tous les garçons et les filles".