Madonna is giving fans the chance to buy a piece of music history by auctioning off an original signed snap taken at the beginning of her career.

The vintage shot of her performing to a small crowd in New York, taken by photographer Moshe Brakha in the 1980s, is up for sale via online auction site

The money raised will go to the Material Girl's Raising Malawi charity, which aims to lift the African nation's orphans out of poverty.

Madonna will personally autograph the black and white snap, which had already raised bids of $6,700 (£4,466) as Wenn went to press.

The sale will end on Friday night (23Aug13).