This video is terrific.
In summary: Terrific.
Here's Ryan Tedder explaining all the terrificness: "It's a bit of a mad kind of unicorn. It's so bizarre. For a lot of the videos we've done, I've come up with the treatments, and I wondered if people would think this one was a bit crazy, but they went for it! You’re going to think, 'How the hell did this song create that visual in his head?'"
My guess would be a fish sandwich that had passed it's sell by date.