Lorde Sings 'Ya, Ya, Ya" South Park Parody (VIDEO)

Maybe Lorde really is Randy Marsh ... she ACTUALLY sang the "Ya, Ya, Ya" song from the "South Park" episode she was heavily featured in ... and it's pretty awesome.

Lorde spoke with a New Zealand news site to yak about her "Hunger Games" song ... but the chat eventually turned in a confession about the recent episode that parodied her.

Lorde talked about the similarities between herself and Randy -- then quickly made sure to note they weren't the same person.

We smell cover up.