Image Credit: The Everett Collection/AP Lizzie McGuire premiered on January 12, 2001, and the world hasn't been the same since. The Disney Channel series became a huge hit and made Hilary Duff a massive star. The thing about Lizzie was that she was so relatable for children and teens at the time. The show followed the ups and downs of the adorable middle schooler, who also had a larger-than-life animated alter ego. The show was such a sensation that it spawned the 2003 movie, The Lizzie McGuire Movie.