愛與和平是六零年代嬉皮的代表語之一。(Make Love, Not War.Give Peace a Chance.)

Disco真正大興是在七零年代。
https://en.wikipedia.org/wiki/Disco

Disco is a genre of dance music containing elements of funk, soul, pop, and salsa. It achieved popularity during the mid-1970s to the early 1980s.

據我淺薄的認知，Disco和"Love & Peace"這句口號沒有很大的關連。