Posted September 14, 200816 yr Britney Spears and her family are donating this one of a kind autographed portrait of the pop princess, with all proceeds going to charity. The pop art, which stands at 5'4" will go on sale on eBay tomorrow with a starting bid of $10,000. The Spears family gave the painting to the Promises Foundation, which provides health services to low-income woman and kids, reports People magazine. "The Spears family gave us this painting out of their generosity," says the organization's director, Lisa Rogg. "It was their idea for the auction."