The Monaco Grand Prix yielded some vibrant moments from celebrity fans who watched Ferrari driver Sebastian Vettel of Germany win the car racing competition today in Monte Carlo.
Hadid had on a bold red satin top and matching trousers teamed with nude sandals, and her friend Harlow channeled bohemian style with a flowy flower print dress and whimsical booties.
Some of the stars who stepped out in sandals like Hadid included Adrianna Lima, who wore a pair in silver with her white suit, and Barbara Palvin teamed her black sandals with a slinky black dress.
Meanwhile, Princess Charlene Wittstock wore nude sandals with a red dress when she presented the champion with his trophy. Vettel celebrated his victory wearing Puma sneakers.
Nike ambassador Serena Williams showed off her growing baby bump in a fitted multicolor minidress that she complemented with pair of black flats with bow detail. Designer Chiara Ferragni teamed an off-the-shoulder white top and denim shorts with white sneakers, and actor Chris Hemsworth rocked black high-tops.
Lindsey Vonn, James Marsden and other celebrity guests made appearances at the competition.
Click through the gallery to see more photos.