Very few people get a hit record to their name - still less by the time they are eleven.
But children at Gaywood Community Primary School near Kings Lynn in Norfolk are celebrating doing just that.
– Owen, Background Artist, Aged 11
"Now I can say my school got to number one and I was part of it. That's like a lifetime achievement!"
Last week, every child at the school spent a day at a music technology workshop. The school invited a composer and producer, Neil Johnston, to help them put together a single. More than 400 children aged between 4 and 11 took part whether singing, playing - or just clapping along.
On Monday night, the single 'We Say' was uploaded onto an online music seller and by the next morning, it was top of the UK iTunes children's songs chart.
– Amani, Lead Singer, Aged 9
"It was very good but I won't let it go to my head!"
The school don't yet know how many singles they've sold - but any money they make will be invested into the school's music department.
The headteacher Paul Shanks says the school isn't planning to release any more singles but say making the music has revealed a number of hidden talents among the children.
From guitar playing, to singing, to computer skills, the school is now hoping to build on everyone's talents.
You can hear the track 'We Say' - and what the children thought of making it - by clicking on the video at the top of the page.