Dame Edna is hanging up her tiara. From now on the ‘failed comedian’, as Edna calls her alter ego Barry Humphries, will have to make do without her. Her current tour includes a run at the London Palladium but after she’s graced the provinces, it’s adios, possums. Her last ever live show is currently bringing (I paraphrase her website) a spooky old resilience to people’s lives through laughter, prayer and a life-enhancing enzyme called Vitamin E —  that’s E for Edna.