The U3A choir meets on the first Monday of every month to sing and perform music from jazz to musicals.
The choir consists of members from U3A - formerly known as University of the Third Age - which is an organisation that offers courses and activities to retired or semi-retired people to help combat loneliness in old age.
Derek Bacon, vice chair of Barnsley U3A, said: “The choir has just under 100 members from the age of 55 right up to our oldest member at 99.
“They meet once a month to get together and sing songs that make them happy - it’s really just a group of people who have had no formal singing training, getting together and having a good time.”
To celebrate its tenth anniversary, the choir hosted a concert which took place on Tuesday at Emmanuel Methodist Church, Huddersfield Road.
“It’s a real achievement for the choir,” Derek added. “It’s great to see people coming together and having fun.”