The lead singer of the Seekers was considered a “national treasure.”

Ltd. and Universal Music Australiaposted to the Seekers' official Facebook page.

The Seekers eventually sold 50 million records.

Mandatory Credit: Photo by Joel Goodman/Lnp/Shutterstock (3785643h) The Seekers - Judith Durham The Seekers in concert at Bridgewater Hall, Manchester, Britain - 29 May 2014

Judith Durham.Joel Goodman/Lnp/Shutterstock

Durham left the group for a solo career in 1968 but returned to record with them throughout the 1990s.

Her kindness will be missed by many.

The anthems she gave to our nation will never be forgotten."