As Harry Styles gears up to release his new single Aperture from his forthcoming fourth studio album, Kiss All the Time. Disco Occasionally., the pop star once again finds himself on the brink of reinvention. From boyband heartthrob to genre-fluid global icon, Styles has spent the last decade shaping a discography that blends vulnerability, flamboyance, rock bravado and pop perfection. Ahead of this new era, here's a look at five of his biggest hits. These are songs that not only topped charts but cemented his place as one of the most compelling artists of his generation. 1.