Twin Girls Rip Metallica on a Harp

It's a common fact that Metallica's music, while predominantly heavy and dark, translates very well to other acoustic stringed instruments, and harp is no exception. It's also commons knowledge that any time twins work together to create something awesome, their creation is two times as likely to go viral on YouTube. It's an added bonus if they're both ridiculous prodigies at a mysterious instrument like a harp.