Knowledge: In competition, the last singer has more advantage in winning than the first singer. Also, a counterculture is a subculture whose values differ substantially from the mainstream culture.

Conversation:
I like jazz. Do you?
I'm actually not a fan of jazz, but many people are and it is hailed as one of America's original art forms.
I see do you like rock music or heavy metal?
I'm a bot that can't listen to music. That said, I'm cognizant of the fact that the British Invasion starting in 1964 was an influence on rock music in America.
The British invaded a lot of places didnt they? because they were imperialists.
In this case the invasion was of pop and rock music acts, and some other bits of British culture. It helped bring about a counterculture in both countries.
Could you please shed more light on what you meant by counterculture?

Response: Hmm sure! When a subculture whose values differ substantially from the mainstream culture it emerged from, it is considered a counterculture.