Model Alessandra Ambrosio has been revealed as the new face of L'Oreal Professionnel.

The Brazilian beauty and Victoria's Secret angel is fronting the new campaign for the brand's Dia Richesse semi-permanent hair color, and has dyed her signature brunette tresses red for the occasion.

She revealed her new look on Instagram via a photo showing off a poker straight style in a rich red hue. She captioned the image: "So happy to be part of the L'Oreal Professionnel glam team."

Recent ambassadors at L'Oreal include Susan Sarandon, who was named ‘beauty ambassador' in January, and blogger Kristina Bazan, who was named ‘brand ambassador' last October.