At least, that's what this appears to be. What you're reportedly seeing is Krewella (well, at least Yasmine and Jahan) in the studio with Pete Wentz of Fall Out Boy, vibing to a track that definitely sounds like a mesh between Krewella's aggressive sound and vocals that could be straight out of a Fall Out Boy song. We know that Krewella is working on their album, and Fall Out Boy have been all about the collaboration in their time. We'll keep you posted on any more news from this development.
Oh, and for anyone trying to say that @EDMSnob had something to do with this video, here's his response:
— EDMsnob (@EDMsnob) April 29, 2013