ET has the details...

Kathy Hilton, mother of Paris and Nicky Hilton, has announced an auction in which TV and Internet viewers can bid on celeb-donated items, with proceeds benefiting the Make-a-Wish Foundation.

Kathy's "Wishing Tree" auction will feature more than 100 hot celeb items to bid on, with just a few of the prizes including: two tickets to a Jonas Brothers concert of your choosing and a meet-and-greet with the singers; two "American Idol" tickets donated by Ryan Seacrest; autographed scripts from Leonardo DiCaprio; and even top designer clothing, handbags and accessories donated by Kathy, Nicky and Paris.

Airing Dec. 20 at 7 p.m. Eastern (4 p.m. Pacific), the auction will allow viewers the chance to be guests in the Hilton's home via Auction Network, America's Auction Network, My Family TV and the Internet at auctionnetwork.com. Tune in to watch and bid on the 100-plus items in real time!