Pupils from Chantry academy enjoyed a day of singing and were joined by X Factor finalists Voices With Soul on Monday.
The primary school choir took part in the Big Sing Off in Dunstable and they sang at the O2 earlier this year.
Jamie Kelly, assistant headteacher, said: “We had our Sing Up day, where each class learnt a song and we all gathered in the hall to sing to each other.”
They were joined in the afternoon by the soul singers, Mr Kelly said: “They sang to the children and spoke to them about how they became so good at singing, offering advice and how to achieve what you want in life.
“The children were enthralled throughout the performance and had no hesitation in joining in with the singing, they haven’t stopped talking about how much fun it was.
“The ladies were very impressed with their singing.”