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.
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.
Her romances with Aaron Carter and Joel Madden were often reported in the media.
In 2010, she married former professional hockey player Mike Comrie, with whom she has a son.
Despite initially only being released in North America, the album received numerous re-releases in the following years.
Duff later signed a recording contract with Andre Recke of Hollywood Records to release future recordings.
She later released the novel Elixir (2010), which became a New York Times best seller.