You’ve got the January blues? Well, this terrific one-woman show is the way to banish them.

Bernadette Robinson’s arresting concoction gives us five fictional encounters with famous “divas” and splices them with music that’ll thrill you to the bones. It’s debatable whether even this warrants the £75 top price at London’s Ambassadors Theatre, but there’s no doubt that the Australian actress, who first performed Songs for Nobodies in London at Wilton’s Music Hall last March, lustily sings for her supper several times over.

The script, by Robinson’s compatriot Joanna Murray-Smith, cuts straight into observations so nakedly wistful that they’re almost comical. “Happiness is the temporary illusion...