Randy Marsh impersonating Lorde
Randy Marsh is a character from South Park. In an episode of the show he pretends to be Lorde, which turned into a huge meme in the Lorde fandom, which ended up in Lorde singing "I am Lorde ya ya ya" on an interview.
Background[]
In the episode "Gluten Free Ebola" of South Park, a character named Randy Marsh is revealed to be Lorde at a backyard party, singing "I am Lorde, ya ya ya".
Lorde sang this on an interview. She also said "I was thinking, 'Yeah he has a mustache...I mean I have a mustache, but is it that prominent?"