Been living under a rock for the last twelve months? Got no idea what's going on in the hit parade? Think streaming is something that happens in the countryside? Then step right this way.
Even if you've been following the charts all year, this superb annual mashup from DJ Earworm is seriously worth five minutes of your time, as it pulls together the 50 biggest hits of the year into one all-singing, all-dancing track.
It's built around the unmistakeable backing of The Weeknd's move into pop, the Max Martin-assisted I Can't Feel My Face, and Maroon 5's Sugar, but all the usual suspects are in there - Taylor Swift (with four tracks), Ellie Goulding, Bruno Mars, Major Lazer and many more.
Speaking to Billboard, Earworm explained: "I try to get a feel of what is in the zeitgeist. Music has been going through a softer phase than it was a few years ago so there's that return of adult contemporary. That's maybe represented by the Ellie Goulding track, it's very lush and soft. And then there's sort of retro, uptempo dance stuff, and that's represented by The Weeknd['s] track."
It's like a super-condensed Top of the Pops Christmas special (only without the dodgy presenters).