Fortnite Festival has its roots in the game Rock Band, and the team behind Rock Band, Harmonix, recently joined Epic, the company behind Fortnite. In the past, Harmonix has included lesser known bands in Rock Band, and folks were postulating that this might be the case here. There's scant information about Witchgang online - a minimalist website links to several outlets where you can hear their music. (Personally, I'm still all about bandcamp, since you can download lossless copies, stream freely, and musicians get more of a cut, but I digress). Their Instagram account has comments cheering them on, mixed in with a couple people who are acting suspicious about the appearance of this band out of nowhere.
It was shaping up to be a fun mystery to unpack, but leave it to the corporate overlords to give the game away. Now, if you're reading the lyrics to Nothing's Alright, lines like "the world’s on fire but nothing can stop me now" are going to stick out to you. Even the name of the song hints at themes familiar to visitors of this site. So when the song's page on Apple Music lists the production and writing credits, and you're seeing names like Dave Sitek, Trent Reznor, Atticus Ross, Thomas Fec, Ross Birchard, among others - the picture gets even more interesting.
There are two tracks available now: Nothing's Alright (which you can perform on Fortnite), and Timeless. I'd bet there's more to come.