What makes a song an earworm? That’s the central question explored in the engaging talk series Switched On Pop, hosted by musicologists and songwriters Charlie Harding and Nate Sloan. Each episode serves as a lively masterclass in music appreciation, as the hosts dissect the construction of today’s biggest hits alongside iconic classics. Rather than simply reviewing tracks, Harding and Sloan break down the secret ingredients behind catchy melodies, surprising chord progressions, and the subtle production choices that make songs unforgettable. Their infectious enthusiasm and accessible analysis transform complex music theory into a fun, relatable conversation for both casual listeners and devoted audiophiles. The series covers a wide range of genres, from pop and hip-hop to indie and rock, often inviting special guests—including artists, producers, and critics—to offer their own perspectives on the craft. With its blend of humor, insight, and genuine passion for sound, Switched On Pop turns the experience of listening into a fascinating detective story, revealing how much more is happening in your favorite songs than you ever realized.