Last night, downtown future-popper MNDR was David Letterman's musical guest. She brought a full string quintet along with her, as well as a percussionist and an electronic-gizmologist. Tom Cruise, also a guest on the show, apparently said nice things about MNDR, and MNDR sang "Feed Me Diamonds," the title track from her 2012 debut. Watch it below. [videoembed size="full_width" alignment="center"][/videoembed] ...