Bringing together two very different genres, the 56th Annual Grammy Awards welcomed Metallica to the stage with special guest Lang Lang.

The “Enter Sandman” rockers looked to be thoroughly enjoying their chance to make some noise while their concert pianist pal couldn’t get enough of the metal vibes.

Prior to the show, drummer Lars Ulrich chatted about the thrill of making a Grammy return after more than two decades since their last appearance.

"It's been 22 years, I do believe [since we last performed at the Grammys], so we're excited to be back. That's a long time to be away from anything, so we've got a lot of energy stored up that we're ready to unleash.”

"Obviously, the Grammys are mostly about mashups, and so we're doing a very cool one with our new best friend, which is the worldwide renowned pianist Lang Lang."

Ulrich added, "Well, I would like to think that on a broader scale that music is music. We have a tendency in METALLICA to not look much beyond that in terms of definitions. But, obviously, Lang Lang is a very talented musician, he's a very dynamic musician, he projects himself very well. I mean, when he plays, he's really full of energy and he's got a lot of kind of showmanship and kind of energy that protrudes off the stage and right into people's hearts and souls. So I would like to think that it's a good collaboration."