The 30-year-old songstress will collaborate with the metal
gods for the prestigious music award, confirmed E! online.
A fan site initially tweeted an unaired promo for the show, where one could see the duo playing together.
This is a new development after Gaga's announcing her world tour for Joanne, post her 2017 Super Bowl halftime performance.
The "Born This Way" singer had paid homage to David Bowie last year, but this will be Metallica's first appearance since the year 2014.
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