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If we saw our mother spreading her legs on billboards and in the window displays of old-fashioned CD stores, we'd probably either disown her, change our names or move to Mars. Unless, of course, she was Madonna. Then we might just have to put the poster up in our rooms. Madge is turning 50 this year, and she's not letting that stop her from putting out her single most explicit album cover to date. Even Erotica's open lips and Confessions On A Dance Floor's spread eagle from behind don't compare with the artwork for Hard Candy, which features the B12 shot lover posing as an S&M-inspired boxer (of sorts) waiting to "kick your ass" (just as Madonna promised the album would do). But just because Madonna's putting it all out there now doesn't mean her more suggestive covers weren't ten times sexier.

Take, for example, her three most provocative covers up to this point, 1983's Like A Virgin, 1992's Erotica, and 2005's Confessions:

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We happen to think the lacy dress on Virgin is just begging to be lifted up, even if we can't even see the hem. And the close-up shot of Madonna's cherry-lined lips and false eyelashes on Erotica is somehow sexier when drawn in such exaggerated effect, like a page from Playboy coming to life. And then there's her last effort, the leotarded Confessions, which portrays her a disco-happy blonde redhead so enraptured with the music that she doesn't even have time to turn towards the camera. Judging from these three album covers alone, we think Madge is far sexier when she keeps it in her pants.

[Photo Credits: People, Absolute Madonna]