Nazi chic is the use of Nazi-era style, imagery, and paraphernalia in clothing and popular culture, especially when used for taboo-breaking or shock value rather than out of genuine sympathies with Nazism or Nazi ideology.
Its use began in the mid-1970s with the emergence of the punk movement in London: the Sex Pistols' first television appearance occurred with a person of their entourage wearing a swastika. Nazi chic was later used in the fashion industry.
Usage of Nazi Chic
It should be noted that, more often than not and contrary to popular belief, a Nazi Chic aesthetic is usually invoked when trying to symbolize a fascist, authoritarian ideology and is generally a criticism of said aesthetics. Lady Gaga here has utilized Nazi chic aesthetics in her music videos before (most famously for her music video for "Alejandro") as a criticism of their restrictions on freedom of self-expression. Other noteworthy example invocations of Nazi Chic include The Empire in Star Wars (or, more recently, the First Order in the recent trilogy of films, which is a bit more on-the-nose with its Nazi imagery).
Lady Gaga - Alejandro
An example of utilizing the Nazi Chic aesthetic to criticize.