Final answer:
The decade that created a new kind of music superstar, marked by foundational rock 'n' roll artists and cultural upheaval, was the 1960s. Iconic events like Woodstock and the massive influence of bands like The Beatles produced stars that defined the essence of suburban youth culture and rebelliousness of the era.
Step-by-step explanation:
The decade that produced a new kind of superstar with the emergence of rock 'n' roll and cultural revolutions was the 1960s. This era saw the rise of iconic musical bands such as The Beatles, offering a suburban youth culture with their music and style. The late 1960s were noted for being rebellious and culminated in historic events like the Woodstock music festival in 1969. Moreover, in this decade, television became a significant medium for the promotion of rock and roll stars to teenage audiences across the country.
While the 1950s introduced key figures such as Elvis Presley, who caused a sensation among teens and unease among adults, and the 1980s marked the advent of hip-hop and blockbuster Broadway megamusicals like Cats, it was the 1960s that truly created a new kind of music superstar. This era of music history bridged the gap between the two eras and paved the way for the future cultural and commercial phenomena.