Taylor Swift, Coldplay and One Direction are offering up concert tickets to raise money for charity.
Maroon 5 and Nikki Sixx have also donated passes to the Get Prepared California drive, which will benefit earthquake response programs in the state.
Swift is expected to raise $15,000 for the cause by auctioning a trip to see her perform in Canada in August (12), while Coldplay are offering a once-in-a-lifetime French adventure, including gig tickets, a vineyard tour and four nights in a Parisian hotel.
British boyband One Direction are giving away tickets to see them play in Los Angeles, as well as a Hollywood shopping spree and a visit to a day spa for the highest bidder and three friends.
Celine Dion tickets, a meet-and-greet with soccer star Landon Donovan and a party with the stars of reality TV hit Jersey Shore are also up for grabs in the Charity Buzz auctions.