In a special set to air on TLC tonight, reality star Kate Gosselin celebrates her 40th birthday with her eight kids in Mexico — and show's off a kicka– bikini body (um hello, this woman birthed EIGHT children!)

kate gosselin
TLC

In a preview for the one-hour episode, the reality star shows off her slim frame while hanging out at the beach. Scroll down for more fabulous figures over 40 and tune into TLC at 10/9c to watch the matriarch in Mexico!