Pupils at a Bath school are trying to make history today.
Kingswood School Senior Choir is travelling around the city singing "Hark! The Herald Angels Sing" at a number of different venues.
They're trying to manage 40 churches and chapels in one day.
They're singing a four part harmony of the first verse to raise money for the charity, Hope and Homes for Children.
The famous carol was composed by Charles Wesley, the brother of Kingswood School's founder, John Wesley.