Gabriella is the star of channel Toys and Little Gaby, alongside her five-year-old brother Alex, which has more than 11 million subscribers and 3 billion views.

The new partners are Daniel LaBelle, The McClure Twins, Dominoki Kids Songs, Papa Jake, Akili and Me, Wilson World, Gaby and Alex and Toys AndFun Sisters.

They are Britain’s biggest young influencers and banked more than £1.1 million last year – but Gaby and Alex Vilumsone are aged only six and seven. A YouTube channel featuring the siblings ...