What makes Why Not by Hilary Duff notable?

'Why Not' peaked at number 24 on the Billboard Hot 100 and became a defining song of the early 2000s teen pop movement. It showcased Duff's transition from a child star to a legitimate pop artist, influencing many young performers in the genre that followed. Released on June 23, 2003, 'Why Not' was Hilary Duff's first foray into music, following her success as a Disney Channel star. This debut single helped establish her as a pop music artist amidst her burgeoning acting career, making this album a significant launchpad for her musical pursuits.