Pop music is a broad, ever-evolving genre of popular music that emerged in its modern form during the mid‑1950s in the United States and United Kingdom. It is characterized by catchy melodies, repetitive song structures (often following a verse–chorus format), and production techniques designed for mass appeal. Drawing influences from rock and roll, R&B, folk, electronic, and even elements of country and hip-hop, pop music emphasizes accessible, sing-along hooks and lyrics that frequently explore themes of love, relationships, and everyday life. Pop's fluidity allows it to absorb trends from various genres while remaining tuned to what resonates with a wide audience—making it not only a dominant force in the music industry but also a key part of global popular culture.