Heavy metal band GWAR just released their 14th studio album, The Blood of Gods, earlier this month. So the band stormed into the Billboard offices on Halloween to demand a no. 1 spot on the charts -- in full costume, of course.

From raiding the office's snacks to offering the staff bribes, GWAR did not hold back to claim what they felt was rightfully theirs.

Check out the full GWAR invasion in the video above.