Heidi Klum  was in her native country yesterday to introduce the final round of contestants on Germany's Next Top Model. The supermodel, who glowed in a sparkly black minidress, made the trip overseas after spending much of May celebrating her union to Seal. Heidi and Seal renew their vows  each year, oftentimes with fun theme parties and silly celebrations. This time, they marked their sixth anniversary with a family trip to Florida, where they held a small ceremony and threw a costumed soiree at friend Donald Trump 's Mar-a-Lago estate. The happy pair plan to share their secrets to relationship success with other couples through their upcoming reality show Love's Divine. The show will be the latest TV series for Heidi, who also had a hand in producing both Project Runway and Seriously Funny Kids.