ProSieben/Oliver S.Heidi Klum isn't just a supermodel, reality TV host, entrepreneur and mother of four.
She's also a celeb who's doing her part to save the planet by getting her green on.
So what's her top tip for being eco-friendly around the house?
"I try to be not so wasteful," the supermodel mama told us at the Kids' Choice Awards in honor of Earth Week.
"I think that you can start already in your home," she says. "Not to be so wasteful. Not to buy so many things, and food or to teach the kids not to throw things away or put everything on their plate that they're not going to have. I think you have to smart small in order to also make a difference. To not be so wasteful, I think is a good start."