Elaine Paige and Proms bosses are asking the nation to join the party and come together to sing Supercalifragilisticexpialidocious from Mary Poppins, in the first ever Last Night of the Proms virtual choir.
To take part, simply record a video of yourself singing along and send it in via the BBC website by Sunday 31 August.
The videos will be edited together to create a virtual choir and the finished results will be revealed online and in the parks around the UK during the Last Night Of The Proms on Saturday 13 September.
No high-tech camera skills are necessary, as videos can be recorded on computers, smartphones or tablets.