Children from South End Junior School in Rushden will take part in the young voices concert at the LG Arena in Birmingham on Wednesday, December 5.
The school choir was set up two years ago and now has 110 members.
Teaching assistant Anna Webb, who runs the choir, said: “The children are so excited about it. There’s going to be about 8,000 children there on the day.
“We will be in the arena with all the other children and they will all be singing together.”