Virtuoso Vocal Battle - Beyonce vs. Natalie Weiss [C5 - Bb5]

Two of my favorite current virtuoso vocalists in a vocal "battle". I honestly can't choose who is better. I think they're equally talented vocally. What's your opinion? Who do you think is better as a "belter"? [Let's not forget that Beyonce is a Mezzo-soprano, so her upper belter range is more limited than Natalie's, who is a Soprano.