Will age classifications for music videos work?

David Cameron has announced age ratings for music videos in the UK. But will a 15 or R18 label really protect children from the latest Rihanna spectacle? And could censorship do more harm than good?

Taylor Swift: ‘Sexy? Not on my radar’

She’s gone from ringletted country artist to feminist role model and the world’s most charming pop star. As she returns with her catchiest material yet, she talks awards-ceremony etiquette, autobiographical lyrics and why she puts nice before naughty