Pop music is a genre that originated in its modern form in the mid-1950s, deriving from rock and roll. It is characterized by its catchy melodies, simple chord progressions, and relatable themes like love, relationships, and personal experiences. Pop music tends to prioritize mass appeal and accessibility, blending various influences like dance, electronic, rock, and even hip-hop. It has evolved significantly over the decades, from artists like The Beatles and Michael Jackson in the 20th century to contemporary stars like Taylor Swift, Beyoncé, and Justin Bieber.