The ladies showed off their washboard abs this weekend in tiny swimsuits.
Klum shared a fun photo of herself on Twitter, writing "yummy."
The mother-of-four did indeed look yummy as she enjoyed a popsicle and posed in a bright orange bikini top.
The supermodel paired her swimsuit with a pink maxi-dress that was rolled down very low on her hips.
Clearly the 40-year-old America's Got Talent judge doesn't skimp on her workouts and deserves a sweet treat.
Speaking of looking hot. Hudson was spotted in Malibu Saturday wearing a tiny blue two piece.
The 35-year-old mom of two showed off her long legs and toned tummy as she walked around the sand.
Hudson recently told E! News she's been doing Pilates for years to stay fit.
"I like Pilates because it kind of strengthens from the inside out. It's very specific and I feel the strongest when I'm doing it because it really centers on your core," she said.
If she can't get in a workout, the actress will just put on some music and "jump around" for 20 minutes.
Between Kate and Heidi, these ladies know how to maintain their fabulous figures!