Sisters of soul Vika and Linda Bull have revealed what separates them from other duo artists.

Vika & Linda released two highly successful albums ‘Akilotoa – Anthology 1994-2006, which debuted at #1 on the ARIA Album charts, and Sunday (The Gospel According To Iso), which debuted at #2.

They told Deborah Knight there is a certain sound and harmony created as siblings.

“We love harmonising together … we were taught to sing that way by our mother.

“Because we have similar facial features and cavities, that’s why the sound is so unique.”

The pair will be performing at the State Theatre on June 22.

Press PLAY below to hear the duo’s live performance