The model hopes to raise awareness and funds for fight against Ebola.
She channels Nina Simone, Eartha Kitt, Naomi Campbell and others.
Jourdan Dunn, Rihanna, Beyoncé, and more grace the top spot.
The supermodel looks like a complete femme fatale in ads.
The British models make history as faces of the brand's Spring 2015 campaign.
Plus, pics of Idris Elba, Rita Ora, Naomi Campbell and more.