Heidi Klum spent some major quality time with all of her kids in Germany.

Klum stepped out with all four of her children, Leni, 21, Henry, 20, Johan, 18, and Lou, 15, whom she shares with her ex-husband Seal, to celebrate the launch of HeidiFest.

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The "Project Runway" star was also joined by her husband, Tom Kaulitz, her mother, Erna, and her brother-in-law, Bill Kaulitz, at the Bavarian celebration in Munich, Germany that was named after her.

On social media, Klum shared a bunch of photos of her and her family together at the Oktoberfest-inspired event.

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In one video, which she shared on her Instagram stories, Leni and Henry are seen lip-synching to a s

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