She rose to fame in 1999 with her self-titled debut album, which topped the us billboard 200 and garnered three us billboard hot 100 number-one singles: Genie in a bottle, what a girl wants … Since the beginning of her career, christina aguilera's voice has been one of the most distinctive in pop, thanks to her out-of-this-world range and wise-beyond-her-years lyrical interpretations.

She has …