One of Sir Elton John's suits and shoes signed by actress Sienna Miller are going under the hammer to raise cash for Oxfam's Darfur and Chad appeal.
Corinne Bailey Rae's red dress is up for sale
A dress worn by singer Corinne Bailey Rae and a script of acclaimed film The Queen are also up for grabs on internet auction site eBay.
Oxfam's appeal for the war-torn region of Africa has raised £800,000 since its launch on 16 April.
The 10-day auction aims to raise a further £500,000.
About four million people in Darfur, Sudan, are currently dependent on humanitarian aid, with more than two million of those living in camps.
Sir Elton has donated the tailor-made Donatella Versace suit he wore to his White Tie and Tiara Ball in 2000.
He said: "Try to imagine living in a tiny shelter made out of straw, dry branches and plastic sheeting with the sun baking down on you at 45 degrees. For most of us that's beyond imagination.
"Right now there are two million people living in camps in Darfur and on the border with Chad.
Sienna Miller has signed her gold-coloured designer shoes
"Oxfam is helping 500,000 people providing basic sanitation and clean drinking water but to reach more people they need our help."
Other items on sale include the red dress Bailey Rae wore in the video for Put Your Records On, a pair of gold-coloured designer shoes signed by Factory Girl star Miller and a black Dolce & Gabbana jacket worn by Coldplay singer Chris Martin.
Artist Tracey Emin has donated a pencil sketch, while fans will also be able to bid for a script of The Queen signed by Oscar-winning star Dame Helen Mirren.
Members of the public can also contribute to the auction by offering their own valuable items, such as books, clothes and antiques.
Further celebrity items will be added to the auction as the sale goes on.