Nina Kristofferson has a thriving cabaret career with long-running tributes to Nina Simone and Billie Holliday often selling out venues like The Pheasantry. For her EFG London Jazz Festival showing at that same venue, Kristofferson drew from the deep well of the Great American Songbook, delivering material popularised by the likes of Ella Fitzgerald, Sarah Vaughan, and Frank Sinatra. The lovely mid-range to her voice animated tunes like George Gershwin’s ‘A Foggy Day’ and Cole Porter’s ‘I Get a Kick Out of You’. Yet predictable choices coupled with safe interpretations led the evening to feel at best pleasant and at worst uninspired. A few lyric flubs on ‘Fever’, uneasy sound mixing, and a noisy work party took me out of it too. A confident and charismatic stage persona, Kristofferson can perhaps unlock a better show here than was on offer.