Metallica giving epic 'One' performance at the Grammys

Metallica hasn't performed on the Grammys Stage in a while. So why not come back the most metal way possible - by performing "One" with concert pianist Lang Lang.
Metallica has been known to perform their works with classical performers as background and accompaniment.
Read more on the article HERE and check out this Live version of "One" with an orchestrain 1999.