Britney Spears – Born in 1981, 126 Lbs, 5’4″

If anyone can turn a living room dance break into a full-on cardio routine, it’s Britney Spears. At 5 feet 4 inches and around 126 pounds, Britney doesn’t just work out, she performs for an imaginary Vegas crowd, barefoot, twirling, and giving hair flip realness. She’s famously said she prefers strength over cardio (no treadmill for this queen), and her social media is a glorious, glitter-drenched love letter to staying fit without taking yourself too seriously.

When she’s not flipping into splits mid-kitchen, Britney keeps it simple with her meals—lean proteins, fresh fruit, and the occasional sugary treat. She’s big on hydration and has even dabbled in intermittent fasting.