Madonna has donated a signed pair of boots to a charity shoe auction in aid of her daughter's school.

The pop superstar has handed over the animal-print Miu Miu high-heels to the sale on Gottahaverockandroll.com to raise funds for the LaGuardia High School for Music, Art and the Performing Arts in New York, where 16-year-old Lourdes is a pupil.

Actress Sarah Jessica Parker has donated three pair of shoes to the cause, while Britney Spears, Elle MACpherson, Miley Cyrus and Ke$ha have also contributed items to the sale.