looked unforgettable when she arrived at an event supporting the Brazilian Soul Fund and Brazil Foundation during the Cannes Film Festival on Monday night. The judge, 50, was spotted at the La Petite Maison looking stunning in a fiery red mini dress which featured a plunging V-shaped neckline which squared off at the navel. The velvet garment featured cut-outs at the waist and a corsage detail that covered the entire skirt to make Heidi look like a real-life rose.

Her long-sleeved dress was paired with another red-hot component - the most incredible pair of ruby-red shoes. Her footwear was made from a red patent leather and featured a stick-thin stiletto heel for a leg-lengthening effect. We adored how the mother-of-four styled her hair and makeup.

Never one to shy away from a statement, host wore a scarlet red lip with a satin finish and opted for lashings of mascara and glowing skin. Her beachy blonde locks were styled in loosely blow-dried waves and her iconic side-swept bangs were split down the centre of her face to create face-framing curtain bangs. Heidi was seen posing with the evening's hosts - Brazilian Victoria's Secret model , 43, and fellow model Cindy Mello.

Alessandra wowed in a corseted slinky maxi dress with sheer lace paneling over the torso and down the skirt. Her brunette tresses were styled in casual mermaid waves and she wore a razor-sharp winged liner. Meanwhile, her 29-year-old co-host rocked a backless white floor-grazing gown.

Heidi was also seen wit.