The 41-year-old pop star-turned-fashion guru herself put together the individual outfits, which consist of designer labels such as Chloe, Ralph Lauren, Gucci and Marc Jacobs and will start at 250 pounds per dress and shoes combo and 500 pounds for a complete outfit, reported Contactmusic.
All of the proceeds from the sale will go towards Save The Children's work, which is aimed at eradicating childhood deaths from preventable causes by 2030.
"As a mother, I passionately believe that all children, wherever they live, have the right to a happy, healthy life. Everyone out there can do their part by purchasing or donating, ensuring children all around the world have the opportunity of a brighter future," she said in a statement.