I got such a kick out of this Spotify project: Serendipity is a digital map that displays instances in which one song was played by two people, anywhere in the world, within one-tenths of a second.

The songs aren’t being played in real time. (That would be so much cooler.) But they were culled from a recent one-hour period, so it’s indicative of what’s happening around the world, at any given time.

Most songs are, not surprisingly, current pop hits: lots of Katy Perry, Ke$ha, Ariana Grande.

But there are also some throwbacks, like Radiohead’s “Paranoid Android” and Oasis’ “Champagne Supernova.”

I’ll admit, there have been times when I’ve clicked on a random song—usually some 80s or 90s jam I can’t get out of my head—and wondered whether anyone else in the world was also listening to the same thing, at the same time. Now I know that chances are, someone may have been.

(Screen grabs viaВ Serendipity)