https://www.polygon.com/fortnite/2018/7/20/17595460/fortnite-anniversary-birthday-challenges

Fortnite is coming up on its one-year anniversary, and developer Epic Games has a few surprises in mind to celebrate.

In Battle Royale, players will be greeted by a brand-new three-part challenge when they log in on July 24, the first official day of the celebration. The first of these challenges will award players with 5,000 experience points for just playing 14 matches, the second will net players a happy birthday emote for dealing 1,000 damage and the final challenge will get players a happy birthday spray if they dance in front of 10 birthday cakes. Complete all three of these and you’ll unlock a birthday cake back bling.