Generally a doppelbanger is created on accident, but there are certain people who try to copy artists and songs on purpose. These knock off songs are intentionally made, so they're not doppelbangers. They're clones. And no one likes a clone.
J: Yeah but dude it's totally a doppelbanger of Haggard by Getter.
C: What? It sounds nothing like it.
J: Dude listen to them both. You're fucking stupid if you think they don't sound alike.
"Yeah, she and Tori have blended their dress sense and everything. They've basically got a shared wardrobe. They've been getting into the same scenes. They're total doppelbangers!"
Kaden: No? Who was it?
Dave: It was this chick who looked just like my ex but wasn't bat shit crazy.