I am so sad to hear this. I unashamedly cried when I heard the news.
I've been a fan of The Seekers since I was a kid in the 1960s.
She suffered a lung problem from the age of 18, but it didn't stop her from performing.
I last saw them live in 2013, and although in their 70s they sounded exactly like they did in their 20s - if not better.
They still hold the record of attracting the largest crowd in the southern hemisphere at a concert - 200,000 people.
At one of their concerts she told the story of when they ran into Barry Gibb in a recording studio in London. He had a new song which he offered to then, but they declined.
The song; Massachusetts.
https://www.youtube.com/watch?v=CUfUNNN68eQ Rest in peace Judith - the Heavenly choir just got a new lead singer.
A state funeral is being arranged.