
Pop signer Madonna put up for auction "Three Women at the Red Table" by Fernand Leger to support girls' education in Afghanistan, Pakistan and other countries. (AP Photo/Sotheby's)

Pop signer Madonna is selling at auction "Three Women at the Red Table" by Fernand Leger to support girls' education in Afghanistan, Pakistan and other countries. The painting is expected to bring $5 million to $7 million. (AP Photo/Sotheby's)

Pop signer Madonna put up for auction "Three Women at the Red Table" by Fernand Leger to support girls' education in Afghanistan, Pakistan and other countries. (AP Photo/Sotheby's)

This undated photo provided by Sotheby’s Auction House in New York shows a 1,000-year-old Chinese “Ding” bowl from the Northern Song Dynasty. The bowl, purchased from a tag sale for no more than $3, was sold by Sotheby’s for more than $2.22 million during the opening session of Sotheby's fine Chinese ceramics and works of art auction Tuesday, March 19, 2013, in New York. (AP Photo/Sotheby’s Auction House)

This undated photo provided by Sotheby’s Auction House in New York shows a 1,000-year-old Chinese “Ding” bowl from the Northern Song Dynasty. The bowl, purchased from a tag sale for no more than $3, was sold by Sotheby’s for more than $2.22 million during the opening session of Sotheby's fine Chinese ceramics and works of art auction Tuesday, March 19, 2013, in New York. (AP Photo/Sotheby’s Auction House)

A Navajo man's wearing blanket from the museum-quality collection of the late singer Andy Williams is slated to go to auction next year. (AP Photo/Sotheby's)

A Navajo man's wearing blanket from the museum-quality collection of the late singer Andy Williams is slated to go to auction next year. (AP Photo/Sotheby's)

This photo provided by Sotheby's in New York shows some of the romantic letters and drawings the late Peanuts creator Charles Schulz sent to a young woman 23 years his junior, who infatuated him. The love notes from 1970-1971 are being offered for sale at Sotheby's in New York. (AP Photo/Sotheby's)

This photo provided by Sotheby's in New York shows some of the romantic letters and drawings the late "Peanuts" creator Charles M. Schulz sent to a young woman 23 years his junior who infatuated him. The love notes from 1970 and 1971 are being offered for sale. (AP Photo/Sotheby's)