![Metallica reveals how they decided on Lady Gaga duet for Grammy Awards 2017: 'She said 'yes,' took about 12 seconds' - ABC News Metallica reveals how they decided on Lady Gaga duet for Grammy Awards 2017: 'She said 'yes,' took about 12 seconds' - ABC News](https://s.abcnews.com/images/Entertainment/GTY-grammy-metallica-lady-gaga-jef-170213_16x9_1600.jpg)
Metallica reveals how they decided on Lady Gaga duet for Grammy Awards 2017: 'She said 'yes,' took about 12 seconds' - ABC News
![Lady Gaga on Twitter: "See you at the Grammys. 🤘#MetalliGa @Metallica 🦋🔥 https://t.co/asIALPRrPC" / Twitter Lady Gaga on Twitter: "See you at the Grammys. 🤘#MetalliGa @Metallica 🦋🔥 https://t.co/asIALPRrPC" / Twitter](https://pbs.twimg.com/media/C4cV9mQUEAA8-Ef.jpg)
Lady Gaga on Twitter: "See you at the Grammys. 🤘#MetalliGa @Metallica 🦋🔥 https://t.co/asIALPRrPC" / Twitter
![Stream REHEARSAL: Metallica ft. Lady Gaga - Moth Into Flame by REBELCULTURE | Listen online for free on SoundCloud Stream REHEARSAL: Metallica ft. Lady Gaga - Moth Into Flame by REBELCULTURE | Listen online for free on SoundCloud](https://i1.sndcdn.com/artworks-000210672961-plep75-t500x500.jpg)
Stream REHEARSAL: Metallica ft. Lady Gaga - Moth Into Flame by REBELCULTURE | Listen online for free on SoundCloud
![L-R) musiciens Robert Trujillo et kirk Hammett de Metallica, la chanteuse Lady Gaga et James Hetfield et Lars Ulrich de Metallica arrivent pour la 59e cérémonie annuelle de remise des prix Grammy L-R) musiciens Robert Trujillo et kirk Hammett de Metallica, la chanteuse Lady Gaga et James Hetfield et Lars Ulrich de Metallica arrivent pour la 59e cérémonie annuelle de remise des prix Grammy](https://c8.alamy.com/compfr/ty6wfx/l-r-musiciens-robert-trujillo-et-kirk-hammett-de-metallica-la-chanteuse-lady-gaga-et-james-hetfield-et-lars-ulrich-de-metallica-arrivent-pour-la-59e-ceremonie-annuelle-de-remise-des-prix-grammy-tenue-au-staples-center-de-los-angeles-le-12-fevrier-2017-photo-par-jim-ruymen-upi-ty6wfx.jpg)