Chart hits could be contributing to the binge drinking culture among young people. Researchers say nearly one in five popular modern songs in the UK mentions booze - a sharp rise from just a decade ago. The study analysed lyrics of singles including Katy Perry's hit Last Friday Night, which includes lines about drinking "too many shots" and smelling "like a minibar".
Christina Becares is from Hope UK, a charity which educates young people about alcohol and drug abuse.
She told Premier's News Hour why she thinks a shift in culture is needed: