In 2017, Metallica and Lady Gaga performed together at the Grammy Awards 2017. They sang Moth Into Flame, a song from Metallica’s album Hardwired… to Self‑Destruct.
The performance was highly expected because it brought together two very different music styles. Metallica was known for heavy metal music, while Lady Gaga was famous for pop music and theatrical stage style.
What Went Wrong Live
During the live broadcast, something unexpected happened.
When singer James Hetfield started singing, his microphone failed. For almost half of the song, his voice could not be heard by television viewers.
The band kept playing. Hetfield continued performing, but the sound problem made the performance look chaotic on screen.
Behind the scenes, the problem was simple but impossible to fix during a live show. A microphone cable had become disconnected just before the performance began.
Lady Gaga reacted quickly. She moved across the stage, shouted backup lines, and tried to keep the energy strong. But the broadcast audience still experienced the performance as silent and messy.
After the song ended, Hetfield was visibly angry. He kicked his microphone stand and threw his guitar toward a stage worker, showing frustration about the technical failure.
The Rehearsal Footage That Changed Everything
@musicvrse @metallica and @ladygaga came together in rehearsal to shape their 2017 Grammy performance of “Moth Into Flame,” trading ideas and locking in their parts before hitting the stage. 🎤⚡ #Metallica #LadyGaga #Grammys
Later, rehearsal videos were released, and fans saw a different story.
During rehearsal, the sound system worked perfectly. The performance was powerful and aggressive in a good way.
Hetfield’s voice sounded strong and clear. Lady Gaga performed confidently, moving with intense energy that matched the heavy metal style.
Drummer Lars Ulrich later said that Gaga felt like a “fifth member” of the band during rehearsal because she adapted naturally to Metallica’s style.
The pyrotechnics and stage effects also looked better in rehearsal because they were timed perfectly with the music.
Public Reaction
The live performance became famous for the wrong reason. Some viewers even noticed that the host, Laverne Cox, did not clearly announce Metallica during the introduction.
But fans who saw the rehearsal footage believed the collaboration was actually very good. Many called it “the performance the world didn’t see.”