Luhrmann explains, “I heard the Jazz Age and said to Bryan “what about if you took our themes and record them with your band?” Then I said “what about if you do ‘Love Is The Drug’?…. and it just kept growing, and next he’s covering Jay Z, Amy Winehouse and Beyonce. And so he becomes the ‘Jazz Voice’ of the movie. We couldn’t have been luckier. Total serendipity.” [Source]
New Music United 