In the mid-1960s, two kinds of popular music were constantly fighting it out for spots on the Billboard Hot 100 charts.

One came from the United Kingdom, the songs played by “British Invasion” bands such as The Rolling Stones, The Kinks, Herman’s Hermits, and, of course, The Beatles, to name just a few. The other sprang from Detroit, where Berry Gordy Jr.’s Motown Records was churning out hits from the likes of The Supremes, The Four Tops, The Temptations and Marvin Gaye among many others.