Today is extra special for Hilary Duff: the actress is celebrating her 29th birthday! Although she currently stars in the TV show Younger and has been in tons of movies over the years, there is one role she will forever be loved for: Lizzie McGuire. Hilary played the main character on the show, and seeing a girl as the lead actress in any show is always fabulous. Over the years, there have been classic shows on both Disney Channel and Nickelodeon that featured a headstrong, fierce, main character, and these heroines have all been played by actresses who are just as cool IRL!
In honor of Hilary's birthday, click through the gallery to see then-and-now pics of your all-time fave lead stars from classic TV shows. Then tell us in the comment section below who you think changed the most!
Hilary Duff on her show, Lizzie McGuire. Click to the next slide to see her now!