Among the dozens of gorgeous gowns on the red carpet last week at the Costume Institute Gala, the most photographed was Madonna’s universally lampooned Louis Vuitton Puss-’n-Boots-plus-bunny-ears get-up.

Madonna kicks off her “Sticky & Sweet” world tour at the Millennium Stadium in the Welsh city of Cardiff on Saturday. Her husband, film director Guy Ritchie, and children Lourdes, Rocco and David were in the audience of 40,000 strong.

The 50-year-old pop icon was dressed in a black one piece outfit designed by Givenchy, with matching knee-high boots, fishnet tights and a sparkly cane.

Pop superstar Madonna joins director husband Guy Ritchie and actress Sharon Stone at the premiere of her new film, I Am Because We Are, at the Palais des Festivals during the 2008 Cannes Film Festival on Wendesday in Cannes, France.

Madonna made a rare and free club performance in New York City.

Joined by Justin Timberlake, the soon-to-be 50-year-old popstress rocked fans at the Roseland Ballroom in Midtown, putting on a 32-minute concert for fans to show off her new album, Hard Candy, which went on sale Tuesday.

Madonna and Justin Timberlake’s “4 Minutes (To Save The World)” Music Video has been released.

Justin Timberlake showed off his funny side again last night, introducing Madonna at the Rock and Roll Hall of Fame induction ceremony:

Justin has revealed that one of the best days of his life was when Madonna told him to drop his trousers.