From pop star to Dirrty Girl and back again, Christina Aguilera has changed her look more times than we’ve had hot dinners. The singer was born 18 December 1980, and became known as ‘the little girl with the big voice’. After a stint alongside Justin Timberlake and Britney Spears on Disney Channel’s The New Mickey Mouse Club at just 13 years old, where she was allegedly nicknamed The Diva, Christina hit the US charts in 1998 singing Reflection for the Disney animated movie Mulan. Here she is in 1999, having entered the spotlight as a fully-fledged recording artist with Genie In A Bottle, looking innocent and demure with platinum, bottle blonde hair and barely-there make-up. Just the way record labels like it when launching a 18-year-old bubblegum pop star into the limelight.