I don't even know what my reaction to this should be, my roommate just showed me and it and I was like "...What." If you want to watch it seriously, do so without music. If you want to laugh, keep the audio on. The song is about the sharktopus.
Now they gotta find a way to put "Release the Kraken" and "Smile, you son of a b***h" into one sentence. The result would make as much sense as what I just saw. *F.Y.I.: That second line was from Jaws*