From Art Daily:
Peter Beard, Alex Katz, Alexander Calder, Andy Warhol, Mary Sibande, Hunt Slonem, Nick Cave, Mickalene Thomas, E.V. Day, Jeff Sonhouse, Beezy Bailey and Sue Williamson are among the artists whose works have been donated to the Art for Africa Auction, a unique auction presenting leading American, African-American and African contemporary artists which will be held at Sotheby's New York on Thursday, November 17th, 2011.
Read more here.