Heidi Klum picked up her children, Henry, Johan, Leni and Lou from their karate classes in L.A. over the weekend.

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With minimal makeup and a flowy, bohemian maxi dress, the supermodel turned business mogul appeared fresh-faced and happy with her brood.

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She tweeted soon after: "Hope everyone had a great Sunday. Swimming, good food, wii, popsicles & little smiling faces! Here's to a great week."