Home Features How It Should’ve Sounded: Metallica Shares Grammys Rehearsal Footage, 0 Technical Issues Included [News] How It Should’ve Sounded: Metallica Shares Grammys Rehearsal Footage, 0 Technical Issues Included [News] planetsixstring March 6, 2017 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Music News: That mic worked just fine during the rehearsal…