All Blacks boss Steve Hansen will take charge of the Barbarians for their end-of-year clash with Fiji at Twickenham.
Hansen previously coached Wales before joining the backroom staff of the All Blacks, helping them to win the World Cup in New Zealand in 2011.
He then replaced Sir Graham Henry as New Zealand head coach after the tournament, and he has subsequently guided the world champions to 19 wins in 21 Tests.
Their only loss came against England last year at Twickenham, while Australia held them to a draw.
The Barbarians have also confirmed that Springbok duo Schalk Burger and Jean de Villiers will play in the match on November 30 which marks the centenary of the Fiji Rugby Union.
Fiji famously recorded a ground-breaking 29-9 win over the Barbarians back in 1970.