Iggy, Charli and the producer are equally responsible. If there was only one good thing about the song, it wouldn't be selling like that. Obviously people love it as a whole.
Radios like Power 106 were already playing the Iggy solo demo "Leave It" in its LEAK version back in January, not saying it'd be big but that was definitely already promising. Charli helped with the pop appeal a lot but she isn't responsible for the success alone AT ALL
(Not to mention the video which helped the song go viral in the beginning and brought attention to it - which then turned into radio support. Which was Iggy's idea as well.)
Iggy, Charli and the producer are equally responsible. If there was only one good thing about the song, it wouldn't be selling like that. Obviously people love it as a whole.
The chorus and her parts are super catchy, she plays a huge role in why the song is so successful & it seems like ppl on here arent giving her a lot of credit