She has been described by later Disney actresses as an inspiration, with artists such as Miley Cyrus and Selena Gomez claiming they looked up to Duff and emulated her career.
Duff has sold an estimated 15 million records since her debut in 2002.
Upon signing with Hollywood Records, Duff began working on her second studio album, Metamorphosis (2003).
The album achieved critical and commercial success, topping the U. Billboard 200 and selling over three million copies in the nation. Duff's success in both acting and music led to her becoming a household name, with merchandise such as dolls, clothing, and fragrances being released.
Following the release of her fourth studio album, Dignity (2007), Duff released a greatest hits album and parted ways with Hollywood Records.