>>  Best known for being the face of Lancome and holding green causes close to her heart (and maybe being Isabella Rosselini's daughter and Ingrid Bergman's granddaughter, too), Elettra Rossellini Wiedemann made an appearance on the Late Show with David Letterman to talk about all of the aforementioned. 

When she revealed she's going to London School of Economics in the Fall to study for a master's degree in biomedicine, David replied: "I don't even know what that means, "life medicine"?"  Funnily enough, Elettra agreed: "I don't either, that's the ironic thing."  But best of all is at the end, when David whips out a "Lancome powder compact" and starts to eat the "makeup" because it "smells delicious."  Looks like the joke is on Elettra . . .