Christina María Aguilera, born on 18th Decemeber, 1980 is a Grammy Award winning pop/R&B singer & songwriter. Aside from being famous for her vocal abilities & creative collaborations, Christina is often familiar as Britney's arch rival and an active philanthropist in charity. Christina's creative control over her controversial make over for Stripped (2004) didn't obstruct any progress besides leaving her a sex image as Xtina.