If you have used Facebook over the last 24-48 hours, you may have noticed something dominating your News Feed.
It's a series of lists titled "10 Concerts I've Been To, One is a Lie."
The premise is pretty straightforward: users share a list of 10 musicians or bands. The user has attended the concerts of nine of these performers, and one is fake. The goal is to see if your friends can guess which is the fake.
It's not exactly clearly how and why this trend took off, but the earliest posts we can find published are on April 25th.
Since then it's gone viral, judging from the countless public posts on the "10 Concerts" game published over the last couple days.
On Facebook, it appears we're at the phase where users are having fun guessing their friends' fake concerts.
A search on Twitter turns up several similar posts asking followers to pick out the fake among 10 concerts.