Madonna will don a tiara once worn by Princess Grace of Monaco when she gets married in Scotland next week, the singer's official fan club Web site said Thursday.

In addition to the Cartier tiara, worn by Princess Grace at her daughter Caroline's wedding in 1978, Madonna will wear a Chloe dress designed by Stella McCartney, daughter of Paul McCartney, the site said. 

The 42-year-old Madonna will marry British film director Guy Ritchie on Dec. 22 in the Scottish Highlands at either the 13th-century Dornoch Cathedral or nearby Skibo Castle. Ritchie, 32, will wear a kilt in Hunting Macintosh tartan in recognition of his Scottish roots, the site said.