Rockabilly's rough image can be traced to both Sam Phillips' lo-fi production ethic at Sun Records and the dangerous look of the many Elvis wannabes on the label's roster; it continued as a symbol of defiance thanks to the nouveau rockabilly look British teddy-boys sported in the '60s (greased hair, rolled-up pant leg) and the makeshift music the reconfigured teddies of punk rock made in the late '70s.