Miley Cyrus Miley Cyrus

Miley Cyrus is organizing an all-star online auction to help raise money for the Haiti relief effort, according to People

"Ever since the earthquake, I've been trying to do my part to help the people of Haiti — and I wanted to do more," Cyrus, 17, told the magazine.

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Participants can bid on items including the Herve Leger dress she wore at the Grammys, House of Harlow jewelry donated by Nicole Richie and Britney Spears' custom silver Versace minidress from the 2008 VMAs.

All proceeds will go to the American Red Cross to support emergency relief efforts in Haiti.

Users can go to to bid on items starting Monday.