The sea shanty group from St Bega's Primary School, in Thorpe Street, on Hartlepool's Headland, went on a singing tour to raise cash for their school.
The young buskers were led by Sean Cooney, of folk band The Young'uns, who works in schools across the town to promote the musical genre.
Mr Cooney said the school is unique in having its own sea shanty group of seven to 11-year-olds, who have been singing about the history of Hartlepool for around two years.
He said: "There's a great rhythmic beauty to shanties and they're really fun to join in with and a great way to celebrate the great maritime heritage of the Headland.
"The kids worked really hard learning lots of new shanties and sound terrific."
The group also performed a song they penned themselves about the mythical story of St Bega, the virgin princess who fled a forced marriage in Ireland to become the first nun in Britain and built a monastery on the Headland in the Seventh Century.