As Hilary was becoming a film and television star, she was also launching a recording career. Her first album Metamorphosis was #1 on the Billboard 200 and went on to sell more than 2 million copies with the #1 single So Yesterday. Hilary's latest album Most Wanted debuted at #1 on the Billboard 200 and was #1 in Canada and #8 in Japan. Her hit single Wake Up was the #1 video on MTV TRL and the #1 single on Radio Disney and AOL.

Around that time, Metamorphosis, Duff's bona fide debut as a singer, was released. The album charted number two on the Billboard 200 on the week of its release, and its single "So Yesterday" topped the pop singles chart earlier that summer. Duff's omnipresence in 2003 continued with appearances at that year's MTV Video Music Awards and the Nickelodeon Kids Choice Awards, where she accepted Lizzie McGuire's trophy for Favorite TV Show.

Duff began her first steps toward her singing career with the song "Santa Claus Lane," which appeared on the soundtrack to The Santa Clause 2, as well as her own Christmas album, also named Santa Claus Lane. That year, production ended on Lizzie McGuire, freeing up Duff to pursue other opportunities. Episodes of the show continued to run into 2003, but by that time Duff had begun to move on, appearing in the teen spy movie Agent Cody Banks.

As Hilary was becoming a film and television star, she was also launching a recording career. Her first album Metamorphosis was #1 on the Billboard 200 and went on to sell more than 2 million copies with the #1 single So Yesterday. Hilary's latest album Most Wanted debuted at #1 on the Billboard 200 and was #1 in Canada and #8 in Japan.

Hilary Duff made a name for herself on the enormously successful Disney Channel/ABC Kids show Lizzie McGuire, which she parlayed into careers as a pop singer and film actress.