Kpop Demon Hunters has won best animated film at the Oscars on Sunday evening - the latest in a growing list of accolades for the movie that has swept the world since it was released last summer.

At Oona Herman's elementary school in San Francisco, stickers of bright-haired characters from Kpop Demon Hunters have become the hottest currency.

Traded among students, these stickers, like so much else to do with the hit film -about a K-pop girl group using their golden voices to fight demons - are everywhere in eight-year-old Oona's life.

At Kpop Demon Hunters-themed birthday parties she attends, children get goodie bags with movie merchandise and pose for photos with giant cut-outs. Of course, they also scream along to the film's chart-topping soundtrack.

Oona cannot decide what she likes most about Kpop Demon Hunters, so she declares: "The characters, and all the dance moves and songs!"