It comes after the choirs revealed they are set to perform at Braehead Shopping Centre on Monday, December 4 and Tuesday, December 5 at various times throughout the day and special evening performances from 6pm until 8.15pm.
They will also be performing in the St Enoch Centre on Wednesday, December 6 and Sunday, December 10, from 11pm until 12pm, then 1.30pm and 3.45pm and Princess Square on Monday, December 11 and Saturday, December 23 at various times.
On top of that, there will also be a special one-off performance from Rockus Choir at Tesco in Linwood on Tuesday, December 5, from 7pm to 8pm.
The events are being held to help raise cash for Quarriers services in Scotland.
This year, 19 schools are taking part, as well as 13 community choirs.
Louise Strachan, Quarriers Events and Community Fundraiser, said: “We are thrilled to have The Festival of Choirs back on our Christmas event’s calendar.
“All the choirs are looking forward to being involved, and we are grateful for all their support and can’t wait for everyone to hear them perform a range of festive favourites.”