Madonna's famous conical corset bra is expected to fetch $24,000 at auction today.

The Jean Paul Gaultier-designed green silk bustier with conical cups - which the "Girl Gone Wild" hitmaker wore on her 1990 Blond Ambition tour - is going under the hammer at Christie's auction house in South Kensington, south west London.

The now 54-year-old singer donned the garment - which also features peppermint bugle beads, with clustered sequins and beads at cups and hip line - during her performance of "Hanky Panky" and "Now I'm Following You" at the Olympic Stadium in Barcelona on August 1, 1990.

A black Lycra two-piece, which she wore while performing her 1990 hit "Vogue" in the stadium, is expected to go for up to $19,000 in the sale of pop culture items. The stage costume is made up of a black satin bustier costume with top-stitched conical cups complete with a black custom-made all in one suit, and Lycra shorts stitched to a mesh bodice.