In 1964 the Beatles traveled to New York City to appear on a television broadcast ("The Ed Sullivan Show," 1948 to 1971) and launched the so-called British Invasion. Influenced by American recordings, British pop bands of the period invigorated the popular music mainstream and confirmed the international stature of rock music. Soon, several British groups had developed individual distinctive styles: The Beatles combined the guitar-based rock and roll of Chuck Berry and Buddy Holly with the artistry of the Tin Pan Alley style; the Animals blended blues and R&B influences; and the Rolling Stones joined aspects of Chicago blues to their intense, forceful music.
The late 1960s was a period of corporate expansion and stylistic diversification in the American record industry. …
