Beauty brand Lancôme has announced actress Lupita Nyong'o as its new brandambassador.  An Acadamy Award Winner for the 'Best Supporting Actress' categoryfor the film 12 Years A Slave, and starring most recently in action thriller Non-Stop,the actress joins other Lancôme ambassadors Julia Roberts, Kate Winslet, Penélope Cruz and Lily Collins. Lupita will feature in the brand's September campaign shot byphotographers Mert Alas and Marcus Piggot.