Interviews Lupita Nyong’o in J. Mendel | “Late Show with David Letterman” ·Wednesday, February 19, 2014 ·Courtney Justice WHO: Lupita Nyong'o WHERE & WHEN: "Late Show with David Letterman" on February 19, 2014. WEARING: J. Mendel dress, Christian Louboutin shoes, and jewelry from Graziela Gems & Janis Savitt.…