Six degrees of separation

Six degrees of separation (also referred to as the "Human Web") refers to the idea that, if a person is one step away from each person they know and two steps away from each person who is known by one of the people they know, then everyone is no more than six "steps" away from each person on Earth. The easier way to understand this is that person A only needs a maximum of five people in between to connect to person B.(Supposing person A and B don't know each other.)
小世界現象（又稱小世界效應）
To make things even more six-degrees-of-pop-cult-separation serendipitous, RevoLucian, the man behind the remix, claims to be producing RuPaul's new album. And RuPaul, the drag queen legend who convinced an entire generation to wear M.A.C. Viva Glam lipstick, launched a new drag-tastic reality competition show just yesterday.
pop-cult 流行文化

意思就是流行文化圈很小，一個又可以扯出另一個，每一個和每一個之間都可以找到關係。