Lorde may have looked unusually conservative with her Grammys performance outfit, but she still managed to get social media swiftly talking with her unusual choice of nail art.
Lorde accessorised her simple monochrome outfit with inky black-smudged finger-tips during her performance of Royals.
The odd fashion choice quickly prompted its own Twitter account as well as being likened to a symptom of the Black Plague by one US entertainment news website.
Lorde's Fingernails - using the Twitter handle @lordefingernail - has been tweeting updates since her performance.
One of the first tweets posted said: "I would like to thank my thumb and pinky, without them, these black fingertips would not be possible.''