Charli is the primary reason for the success. It's blatantly obvious lol. That's not to say Iggy doesn't play a role- some of her parts are catchy and the whole white female rapper gimmick helps.
Fancy is a jam, regardless. It's better than any Nicki song imo. Nicki is still the better rapper, obviously. Her features slaughter anything Iggy has done thus far.
and still hasn't hit mainstream. i love ha tho
Remy is coming to save us. Thank you Jesus. 
