While "So Yesterday" achieved Platinum status in Australia, "Come Clean" went on to become her first hit in the United States.Later that year, Duff co-starred as one of the twelve children of Steve Martin and Bonnie Hunt in the family comedy Cheaper by the Dozen, which remains her highest-grossing film to date.
In 2003, Duff earned a co-starring role in the children's action comedy film Agent Cody Banks with Frankie Muniz.
Scott Foundas of Variety called Duff's performance "charming," and thought she was "sidelined with little to do much of the time." The film saw her also portraying the character of Isabella Parigi, an Italian pop star who Mc Guire is later mistaken for.
Hilary Erhard Duff (born September 28, 1987) is an American actress and singer.
Duff began her acting career at a young age, and quickly became labeled a teen idol as the title character of the Disney Channel comedy series Lizzie Mc Guire (2001–2004).
Slant Magazine reviewer Nick Schager wrote that Duff "does nothing more than look perky and stylish." Lizzie Mc Guire aired its final episode on February 14, 2004 following the fulfillment of Duff's 65-episode contract.
Despite reports that the series was in talks for a second film and further television spin-off, these plans fell through as Duff's salary for the proposal was insufficient.
She continued to have success in music, with her albums Hilary Duff (2004) and Most Wanted (2005) achieving Platinum status in the United States.
Following the release of her fourth studio album, Dignity (2007), Duff released a greatest hits album and parted ways with Hollywood Records.
Encouraged by their mother, both Hilary and her sister enrolled in acting, singing, and ballet classes.
Duff stated, "My sister and I really showed an interest in [performing] and dedication, and [our mother] was like, 'How can I tell my kids no?
Duff recorded the original song "What Dreams Are Made Of" for the film's finale, which was later included on the film's soundtrack.