The Chicks were sisters Judy and Sue Donaldson. Both girls were born in Wellington in 1950 and 1952 respectively. They moved to Auckland at an early age and were brought up on a farm in the Huapai district. They got their first taste of success at a talent quest in Napier one Christmas when they were still children singing as the Dots. A neighbour on the farm was Kevin Borich (later with the La De Da's) and with him they made a couple of acetates at Ascot Studios.

Their lucky break came after the family moved to Henderson, when another neighbour was entertaining, and one of his guests was Peter Posa and his manager Ron Dalton. After hearing them sing, Ron thought the girls had some potential and a few weeks later he invited them into the Viking Studio to make their first real recording, "Heart Of Stone"/"I Want You To Be My Boy". The session players on that gig were among the best in Auckland, the Mike Perjanik Band. It was Mike who gave them their name, the Chicks, and the record was released on Viking in 1965.