It’s not widely known outside of comic fandom that Bruce Wayne’s youthful ward Dick Grayson has not been Robin in comic books since 1984. At that point he assumed a different superhero identity Nightwing.
His first costume under that guise (there have been a few) is affectionately known as ‘disco Nightwing.’ I think you can see why. Even though disco was dead by the mid-eighties, DC comics have always lagged a bit behind trends.
It’s a most valued acquisition here in the Batcave.