No, we're not sure what is going on exactly, but Major Lazer has sent out the following tweet, with the above picture:

What could Major Lazer and Boys Noize be doing at 2PM in New York City tomorrow? Is it a show? Some kind of random pop-up thing? What else is going down in New York City that we're missing?

UPDATE It looks like you were right: Major Lazer and Boys Noize will be hitting Pier 94 on December 30 alongside GTA: