Margaret Qualley’s character in 'The Substance' was inspired by Charli XCX’s “old music”.
The 29-year-old actress plays party animal Sue in the satirical body horror film, who is the “more perfect” version of 61-year-old co-star Demi Moore’s Elizabeth Sparkle, and she revealed she channelled the 32-year-old pop star's "energy" for her alter ego.