From the photo archives: Madonna

Oh, Madge...how will you shock us this time?

Has there ever been a pop star more adept at making us do spit-takes than Madonna? With each passing album and tour, the Material Girl only seems to get more outrageous. Here, starting with her early '80s "Boy Toy" days, are some of our favorite images of the most successful female recording artist of all time (and yes, that's official—it says so in the "Guinness Book of World Records"). —Andy Hermann, Metromix