Hard Rock is the genre that combines powerful guitar riffs, strong rhythms, and intense vocals, creating a dynamic and energetic sound. Emerging in the late 1960s and early 70s, it was popularized by bands like Led Zeppelin, AC/DC, and Aerosmith, who brought a raw, electrifying edge to rock music. Hard rock's appeal lies in its visceral energy and rebellious spirit, making it a favorite for both live performances and radio play. Today, it remains a cornerstone of rock music, with bands like Foo Fighters, Guns N' Roses, and Alter Bridge keeping its powerful, enduring sound alive.