It was Christmas Day 1973 and defined the moment their showbiz careers began. Their most famous hit In the Mood for Dancing came six years later and set the tone for more Top 20 hits in the early 1980s and they went on to sell 25 million albums worldwide and sharing the same bills as Frank Sinatra and Cliff Richard.
Over the years the group line-up chopped and changed between family members and eventually hung up its frocks with the various sisters finding varying degrees of fame and fortune. These archived photos are just a snapshot of their glittering career, particularly in the early years through to acting on stage and TV.
5. The Nolan Sisters at 50
The Nolan Sisters at Heathrow Airport, London, May 1975 Picture: Getty Images) Photo: Evening Standard
6. The Nolan Sisters at 50
Bernie Nolan, who died in 2013 after a cancer battle, with the later Bobby Ball Photo: rob lock
7. The Nolan Sisters at 50
The Nolan Sisters at a hairdressers on November 6 1975 Photo: Aubrey Hart
8. The Nolan Sisters at 50
Anne Nolan pictured in 2000 | National World Photo: Bill Johnson