Just ask Metallica’s James Hetfield, who had a rough moment at the 2017 Grammy Awards when his mic failed during a duet with Lady Gaga: Holding a microphone might seem like a simple task ...

“I’m not holding the mic, I’m not able to, you know, go anywhere. So there are mic stations everywhere,” Hetfield said. “For our monitor guy to chase me around for all the mics, he can ...