Previous ambassadors have, of course, included Georgia May Jagger and the one and only Kate Moss.
This weekend, Cara was spotted on the streets of London, filming scenes for what must be an up-coming Rimmel commercial.
Sporting a studded leather jacket and orange latex bra, she looked every bit the tough girl that we've come to expect from Rimmel's campaigns.
This was only bolstered by the image she posted on Instagram of her being pinned to the ground by a team of police officers, doing her best mean-mugging ( a sour, mean expression).
Her hair was pulled back into a sleek high ponytail, ensuring that her smoky eye and orangey lip were the main focus.
We can't wait to watch her latest acting adventure.