IT'S the one day of the year when children from across the nation stop to make their voices heard loud and clear.
At precisely 12.30pm tomorrow pupils from St Christopher's Catholic Primary School will join half a million other pupils and students from around Australian in song for the Music: Count Us In program.
The program is Australia's largest school music advocacy and participation program.
It involves pupils from kindergarten to year 12 across the country singing the same song at the same time.
The song that stops the nation this year will be Keep On by Katie Noonan.
Pupils at St Christopher's Catholic Primary School have been practising their routine all term.
Come show time, children from kindergarten to year 6 will not only sing, but also show off some cool dance moves.
Teacher Enaam Khodr said Music: Count Us In was about celebrating children's creative art skills.
"The whole school will be stopping at 12.30pm in the playground to rock out and have some fun," she said.
"It's really important for children to be able to understand that creative arts is a part of our everyday life.
"Creative arts allows them to shine."
Ms Khodr said the event provided an opportunity for children of all ages to explore their creative art talents.
"Some children don't have the opportunity to do creative arts activities outside of school," she said.
"It really improves their cognitive ability I think because it allows them to think in a different way and particularly those kids who may lack in other areas.
"It gives them an opportunity to have fun at school and learn about it."