Iggy Azalea's new song, 'Black Widow' (featuring Rita Ora), is about as far from bluegrass as you can get. Well, that was the case before The Gregory Brothers got involved. Check out their bluegrass version of the song. They change not only the style, but the whole feeling of the song. They take if from minor to major and make it sound like a happy song. Here's how they described it:

What if a black widow was a friendly, nice spider, that helped you along your journey on earth? Well then, I guess Black Widow would be a happy bluegrass song.

Take a listen and judge for yourself.