50. "Die Another Day" (from 'Die Another Day,' 2002)
Madonna made a cameo as Pierce Brosnan's saucy fencing instructor in the James Bond flick Die Another Day and recorded its theme song. Madonna and Mirwais brought in French composer Michel Colombier after MGM execs told them to make their demo more in line with the Bond vibe. Colombier went in a "film-score-esque" direction. "Sixty real strings, played live, became audio files in his computer," said Colombier, "chopped like pieces of fabric." It was the biggest Bond theme in ages.