Let's make this birthday one to remember.

35 years old (Born on February 21, 1990)

Happy Birthday to the amazing Kathleen Hersey! From your legendary splash at the 2007 Pan American Games, where you pocketed four gold medals faster than most of us can even swim a lap, you've reminded us all that swimming circles around opponents isn't just figurative—it's literal.

At the 2012 Olympics, you proudly represented Team USA and showed everyone how champions gracefully glide through water. Here's hoping this birthday is filled with fewer pool laps and more cake slices. After all these years making waves in competitive swimming pools worldwide, surely one day lounging by a relaxing poolside was meant for celebrating like today!