By Grace Gavilanes
Updated Jan 09, 2015 @ 7:02 am
James Whatling/Splash News, Samir Hussein/WireImage, WPA Pool/Getty Images

Today, we're toasting to Kate Middleton, who is celebrating her 33rd birthday.

This year will be a tough one to top for the expectant mom, who, within the past few months, has proven that her maternity style savviness, penchant for adorably dressing Prince George, and killer closet repeats continue to reign supreme. It's no secret the Duchess of Cambridge knows a thing or two (or three!) about repeating outfits on occasion. Case in point: her black lace, floor-sweeping Temperley London gown, which she wore to three separate events, accessorizing with distinct clutches to boot.

But she also knows a thing or two about dressing down (and looking good). Did we mention that Kate is also embracing the athleisure trend? Yep, Princess Kate kept it casual with a sweatshirt while visiting young children at a Beaver Scout meeting in London this past year. No word as to how the Duchess of Cambridge will be ringing in her birthday--but, if her past ensembles are any indication, her 33rd year will be one to remember, style-wise.

Ahead, see Kate's dazzling floor-length gowns, coatdresses, and blazers that made us do double takes through the years.