Let's make this birthday one to remember.

37 years old (Born on September 28, 1987)

Happy Birthday, Hilary Duff! From rocking butterfly clips and glittery jeans as Lizzie McGuire to becoming everyone's favorite relatable teen icon, you've truly defined a generation. Your catchy tunes had us singing into hairbrushes, and your heartfelt performances made us laugh, cry, and cheer you on.

Now you're thriving as an actress, singer, author—and coolest mom ever—proving that growing up doesn't mean losing your sparkle. Whether it's charming us in "How I Met Your Father" or inspiring nostalgia with your timeless hits, you continue to make our hearts say "Hey now!" Here's hoping this birthday is what dreams are made of!