While they’re never going to live up to the Oscars in terms of 2017 award show fuck-ups, last month’s Grammy Awards did feature a few technical glitches that got in the way of a perfect show. Most notably, a much-touted Lady Gaga-Metallica collaboration suffered a setback when James Hetfield’s microphone didn’t work on “Moth Into Flame,” turning his planned duet into a Gaga solo. (It was frustrating enough that Hetfield finished the set by angrily tossing his guitar off stage; Lars Ulrich later told James Corden that he hadn’t seen his bandmate that angry “in 20 years.”)