Alison Krauss has donated two dresses she wore to this year's Academy Awards -- one from the red carpet and one from her vocal performance -- to the new non-profit organization Celebrity Rags 4 Riches. The organization will auction the items on eBay and give the funds to Krauss' charities of choice. A replica of the $2 million diamond-studded shoes she wore to the Oscars will also be up for bid. Other artists donating personal clothing items include Joe Nichols, Wynonna and Craig Morgan. The first auction begins Aug. 7.