Pop queen Christina Aguilera is celebrating a milestone birthday as she turns age 40 today.It's been 22 years since the stunning songstress unleashed the hit track Genie In A Bottle which put her on the map, propelling her childhood fame to new heights.Proving that she wasn't just a one hit wonder, she reached the top spot with two further tracks What A Girl Wants and Come On Over Baby (All I Want Is You), before ditching her teen image.Ramping up the sex appeal, the barriers certainly came down as she unleashed the song Dirrty which displayed her sexuality.After The Grammy Award winner had revamped herself she took a step away from the limelight as she welcomed her first son Max Liron Bratman, with her first husband Jordan Bratman.It.
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