Christina had a dream of becoming a professional singer since ever and she won her first singing competition at the tender age of 8.
Christina appeared on the TV program 'Star Search' at the age of 10. She went to the semi-final round.
Christina auditioned for The Mickey Mouse Club in 1981. The 11-year-old girl was not selected since she was underage.
Christina joined the likes of Britney Spears and Justin Timberlake on 'The Mickey Mouse Club' after two years, but later the show got cancelled in 1994.
She recorded a duet with Japanese singer Keizo Nakanishi at the age of 14 hoping that Disney would give her the chance to sing the theme song for their upcoming film Mulan. And luckily, she got the chance!
After Mulan, Aguilera signed with RCA Records and released her debut album in 1999, named after her own name. The album went octuple platinum, and she won a Grammy for Best New Artist.
Her second album 'Mi Reflejo' was a big hit as well. She was named Top Female Pop Act of the Year by Billboard.
Her highly controversial single 'Dirrty' made many people upset about her appearance.
In MTV Music Video Awards 2003, she made out with Madonna during a stage performance.
After her marriage, she made a comeback with her album 'Back To Basics'.
After the success, she shared the stage with other huge artists like Nelly and Tony Bennett and the Forbes magazine named her the 19th richest woman in entertainment.
Christina made appearances in the films Burlesque and Get Him To The Greek later.
She was the coach for the first three season since 2011 and left for her new album. She came back for the fifth season, though.
'Lotus' was a complete bust, so Aguilera decided to come back to the field of music.