In celebration of Madonna's August birthday, and in anticipation of her upcoming movie W.E., IA is ♥'ing Madonna and her reign as Queen of All Things Pop. Admittedly, each twist and turn in her career has generated nearly as many detractors as fans. And each decade has presented her with the challenge of staying relevant. But it can't be denied that nobody has met these challenges the way she has. Why not take a look at how she's done it?