Germany-born Heidi was on radiant form at the Council of Fashion Designers of America Awards in New York, showing off her blossoming baby bump in a silver crushed lamé Michael Kors asymmetrical dress and matching metallic Louboutins.
The blonde beauty, who is five months pregnant with her fourth child, stepped out solo at the bash, leaving husband Seal at home with children Leni, five, Henry, three and Johan, two.
Instead Heidi caught up with model-turned actress Molly Sims, who'd opted for a quirky monochrome Marylyn Monroe-print gown. The Las Vegas actress greeted her pal by bending down to gently kiss her midriff.
Joining the pair at the event dubbed the 'Fashion Oscars' - which recognises outstanding contributions to American fashion - were a host of models, designers and actresses. Among them were platinum-haired British beauty Agyness Deyn – teaming a nude gold sequin-covered dress with a leather jacket and biker boots - and Claire Danes. The Stardust actress was uber elegant in a floor-length black Narciso Rodriguez embroidered black silk crepe gown.
Among the winners at the bash was Ralph Lauren, who was presented with a popularity award, Marc Jacobs, who won a gong recognising his international achievements and Alexander Wang. The San Francisco-born designer triumphed in the emerging talent for womenswear category.