After a hugely successful career creating hits for Pink, Christina Aguilera and Gwen Stefani, the singer-songwriter behind 4 Non Blondes’ ‘What’s Up’ is back with her first solo album in 27 years and a documentary about her life. She tells Kevin E G Perry about her complicated relationship with her late mother, reclaiming her song ‘Beautiful’, and the power of a big hat Get the inside track from Roisin O'Connor with our free weekly music newsletter Now Hear This Get our free music newsletter