With the San Jose Sharks facing a 2-1 deficit heading into Game 4 of the Stanley Cup Final against the Pittsburgh Penguins, the game was big enough on its own. But the Sharks thought they could make it even bigger.

So the team invited Bay Area rockers James Hetfield and Kirk Hammett of Metallica to set the proper tone for Game 4. Clad in their Sharks jerseys, the duo brought their gear to provide their own rocking twist to "The Star-Spangled Banner."

Hard not to get excited for the game after something like that. It certainly got the crowd fired up.

Metallica has been growing closer to the team since the Sharks had a night to honor the group in January of 2015. The first-ever Metallica night was a huge hit, so it was only natural to use that relationship for a moment like this.

Metallica drummer Lars Ulrich and bassist Robert Trujillo were also on hand to take in Game 4. They were responsible for letting the Sharks out of the dressing room to come onto the ice to start the game.

The players were loving it. Sharks defenseman Brent Burns was pretty excited to take a few seconds before the game to hang out with Hetfield and Hammett.

Hammett was so fired up that he even offered his services to the team if needed. I think they took a pass, though.

This unique performance also supported a good cause. Both Hetfield and Hammett donated their guitars from the performance to be auctioned off to benefit the Sharks Foundation.

Now we'll have to see if that performance gives the home team a little more juice in yet another huge game.

James Hetfield and Kirk Hammett rocked the national anthem before Game 4. Sportsnet