A nude photo of a young Madonna has sold at auction for $37,500 (£25,000).
The pop superstar was a struggling student in New York when she stripped for photographer Lee Friedlander, who paid her just $25 (£16.60) to pose for him in 1979.
The candid shot, which sold at Christie's Art House on Thursday (12Feb09), was expected to fetch up to $15,000 (£10,000).
It was bought by an anonymous phone bidder.