I'm a sucker for mash-ups, inventive arrangements, and the Mad Men theme. So
yay for the self-proclaimed "bunch of film/music nerds" behind Live Music Videos who've performed said theme (actually just an excerpt of the RJD2 track "A Beautiful Mine") "with a twist" — namely, by using it as instrumental backing for the pop standard "Nature Boy". I don't know if it ranks up there with Eminem's appropriation of Dido's "Thank You" for "Stan" or David Bowie and Bing Crosby's legendary "Little Drummer Boy / Peace on Earth" medley; at the very least, though, it's a thrill to hear the theme performed acoustically, and I look forward to more from this ensemble.
Related: Mup' Beat • Sisters Go Bangles • Emerald Sit-In