most utopian scenes i had ever encountered in music. >> mancuso is one of the guys who really took the art form of playing the records and how he curated the records. he might play isaac hayes' record. he might play a salsa record. it wasn't so much about a style as it was an an aesthetic of dancing. >> all types of people. people when pop up and down. get high. you can stay here all night. >> why are people dancing again? >> i wish i knew. but i'm glad it's happening. ♪ >> what we now know as disco really starts with a band called the tramps. the drummer, earl young, invents the idea of four on the floor with eight on the high hat. ts, tss, ts, ts. so everything is bam, bam, bam. ♪ burn baby burn