Well, they are called the RobotBoys.
These insane dancers teamed up with Poppin John to let loose (or...the opposite) to some dubstep and electronic music, and have us all wondering whether or not they're actual made of metal.
As top YouTube commenter Swiggity swag notes, "If you look closely you'll notice they are actually human, not robots." Thanks for pointing that out, Swiggity. We wouldn't have known otherwise.