This Is Pop

The Philly Sound meets classic Motown in the impeccable crossover harmonies of Boyz II Men, whose string of smashes inspired a new wave of boy bands.

Embraced and mocked in turn, Auto-Tune shifts the pitch of the pop charts and changes the game for artists such as Cher, T-Pain and Kanye West.

How did Sweden become music's stealth superpower? Map its pop trajectory with the arrival of ABBA, Ace of Base and producer-songwriter Max Martin.

From starry outlaws to a "9 to 5" cup of ambition: The lines between country and pop blur with the ascent of Dolly Parton, Willie Nelson and Lil Nas X.

With grunge on the rise, UK bands reimagine pop in their own playful images, sweeping up a scene in its wake as Oasis and Blur feud with laddish fury.

From the Human Be-In to Glastonbury, music festivals become a pop rite of passage as onstage electricity connects with an enormous crowd's energy.

Can music change the world? Take the pulse of protest music while Hozier, MILCK, Chuck D, the Halluci Nation, Billy Bragg and others weigh in.

A hit dedicated to another Brill Building songwriter, a sweet earworm penned for a cartoon combo — these numbers powered a midcentury music factory.