She became widely known after appearing on the cover of the Sports Illustrated Swimsuit Issue and for her work with Victoria's Secret as an "Angel".
In 2008, she became an American citizen while maintaining her native German citizenship.
After winning, she appeared on the Gottschalk Late Night Show, a German television show with host Thomas Gottschalk.
Following a successful modeling career, Klum became the host and a judge of Germany's Next Topmodel and the reality show Project Runway which earned her an Emmy nomination in 2008 and a win in 2013 for Outstanding Host for a Reality or Reality-Competition Program (shared with co-host Tim Gunn); Klum has been nominated for six Emmy Awards.
She has worked as a spokesmodel for Dannon and H&M, and has appeared in numerous commercials for Mc Donald's, Volkswagen and others.
In May 2011, Forbes magazine estimated Klum's total earnings for that year as list of the "World's Top-Earning Models", behind Gisele Bündchen.
Forbes noted that since ending her 13-year run as a Victoria's Secret Angel, Klum has become more of a businesswoman than a model.
In the story, Klum aka 'The Kluminator,' and her stylish sidekick Coco "The Sassy Superhero" Rocha battle the evil Dr. The heroines employ everything from blow-dryer guns to fist fights, in order to thwart Dr. The Kluminator and Girl Wonder avoid a chain of fashion disasters to neutralize a death ray that threatens to vaporize the community of fashionistas gathered in Bryant Park.
In October 2010, Klum parted ways with Victoria's Secret after 13 years of working with the brand.
She has been a part of several commercials for Volkswagen and Mc Donald's on German television.