Ariana Grande got a “lumos” tattoo on the side of her hand in May 2018. In the Harry Potter universe “lumos” is the charm for creating light in the dark.
This tattoo has many personal meanings for Ariana relating to her music, her life, and her relationship — all of which are deeply entwined. Her new album Sweetener has lots of references to brighter times ahead including the song “the light is coming.” Her tattoo also relates to a huge Dumbledore quote that Pete has on his forearm saying “Happiness can be found / Even in the darkest of times / If one only remembers to / Turn on the light.” So the lumos spell, turning on the light, is the key to inviting happiness into her life.