Glam rock (also known as glitter rock), is a rock music style that eveloped in the UK in the post-hippie early 1970s which was "performed by singers and musicians wearing outrageous clothes, makeup, hairstyles, and platform-soled boots." The flamboyant lyrics, costumes, and visual styles of glam performers were a campy, theatrical blend of nostalgic references to science fiction and old movies, all over a guitar-driven hard rock sound.