When we first met Christina Aguilera, she was just a little girl chasing her dream of becoming a pop star.
She was only eight years old when she won her first talent show. A year later, in 1990, she made a name for herself as a child star on the talent show Star Search.
Sadly, she did not win first place; a boy by the name of Christopher Eason did, but she did end up becoming a superstar anyway.
Growing up in Pennsylvania, Christina was a prominent figure at Pittsburgh sports games. She performed the national anthem before hockey, football, and baseball games. Then in 1992, she was tapped to perform "The Star Spangled Banner" at the Stanley Cup Finals.
The following year, when she finally met the minimum age requirement, Christina joined Disney's The Mickey Mouse Club, and performed musical numbers as well as sketches alongside stars like Justin Timberlake, Britney Spears, and Ryan Gosling.
The show was cancelled in 1994, but it provided Christina with the platform and boost she needed to break into the music scene.
At 14, she recorded her first single, "All I Wanna Do," and a few years later, she was picked by Disney to sing the theme song "Reflection" for the animated film Mulan.
She was soon given a recording contract, and in 1999, her debut single "Genie in a Bottle" was released.
That was the beginning of Christina's race to become a princess of pop.
Her music, including hits like "What a Girl Wants," "I Turn to You," and "Come on Over Baby (All I Want Is You), provided the soundtrack to the lives of many tweens and teens back in late 1990s and early 2000s.
However, beside her vocal prowess and infectious songs, there was something else that made Christina stand out from the rest: her ever-changing look.
Over the years, she went from good-girl-gone-bad, to old Hollywood glamour, to au natural.
Let's take a look at the evolution: