As for Perry, she is riding the wave surrounding the release of comeback album Prism.
Her formula for success is never tweet when drunk, heartbroken or feeling self-indulgent.
‘I’ve learned how to ride social media,’ she said. ‘When you decide to have a glass of wine, put the phone down. Don’t drink and tweet. Don’t be self-indulgent. Don’t use it just to promote yourself. That’s boring.’
