Pretty girl rock: why?

I hear old songs played on the radio every day. All radio songs are not necessarily current. And the radio station was Asian. Perhaps Asia was not affected as badly by the collapse. Perhaps the Asians of that time period have a nostalgia craze for golden oldie 2010 American girly pop.

It certainly isn't the kind of music I like, and I bet Eric was lying by the fire gritting his teeth the whole time Rey was listening to the song, but for a naïve simple young guy like Rey, it was probably a cool tune. They certainly didn't have any other opportunity to listen to attractive feminine voices in that setting. Maybe he used to listen to his mom singing it to him when he was a little kid. Who knows? It was just a little bit of atmospheric color.

That was one of my favorite scenes . I feel like it lightened up the film a bit plus I enjoy the song itself anyway as well as rest of the soundtrack .

David Michôd told in interviews that the idea behind this scene was to show the audience that if there hadn't been a collapse with such disastrous results Rey would've been a simple young guy, listening to pop songs, thinking about going out, meeting girls. It's quite sad how he was sitting in the car on his own, singing along while thinking what he and Eric were gonna do.

David first considered a PussyCat song and when Robert heard he would use Pretty girl rock, he didn't know it was an already existing song but agreed with David's choice. Rob was surprised too that the song was played for a longer time than he had expected.
The lyric line "Don't hate me 'cause I'm beautiful was quite funny given Rey's appearance.
Although I don't believe it was the intention, singing this line it was like a wink from the actor to those who judged him for his looks.

One, how did you know so much about the song? I didn't think it was a real song when it played and assumed it was made for the movie. Also I found it to be a very sad scene. It was Robert's character trying to relate to the softer more intact world he grew up in and could never get back. Instead of being a kid and listening to fluff pop songs he was out killing.

I laughed when it came on. So random.

I enjoyed that scene very much, didn't see it coming. Such a massive blow to the senses, when we've become used to a grim, dusty world of men with no morals, good or bad, just to hear this pop song from something that must be female.

The Asian intro is cool too, plus all the other signs how China seems to have some sort of role in post-collapse Australia (I'm guessing workforce, same as they are doing in Africa).

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that would make the collapse after the year 2000.

Gas is hard to get in the boonies but there are cities where the wealthy live, have electricity, run radio stations.