Love Actually star Martine McCutcheon’s live vocal sounds were transmitted from a studio to Mia’s house and into the Electrospit, which Tanja wore around her neck, allowing her to shape Martine’s sounds into her sister’s favourite carol.

Thanks to the speed of the 5G, there was no delay in Martine’s vocals reaching Tanja - with the duo performing in perfect unison.

Tanja, from Leeds, is incredibly close to her sister Mia, but during her treatment and through her early recovery, lockdown prevented them from being together.