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Since Elvis first thrusted his hips and horrified parents, there’s been concern about the sexualisation of pop music. But has the latest generation of music videos gone too far? Nicki Minaj’s latest video, for example, has been downloaded millions of times, but been criticised for its overtly sexual content. Among those wanting a change is musician DA Wallach - who's currently artist in residence with the music streaming site Spotify.

(Photo: Nicki Minaj performing in 2014. Credit: Theo Wargo/Getty Images for Three Lions Entertainment)