The legendary vocalist was spotted playing air bass and rocking out with Jack Black at two different Life Burns Faster gigs

Metallica ’s “Life Burns Faster” residency at the Sphere is arguably the biggest show in Las Vegas right now, a spectacle so big and loud that even world-renowned vocalist Céline Dion couldn’t help but see multiple times.

Over the past week, Dion has popped at the Sphere twice. The first time was Nov. 5, when a fan captured an incredible video of Dion enthusiastically slapping on an air bass during guitarist Kirk Hammett and bassist Robert Trujillo’s regular “Kirk and Rob Doodle” jam.

Good as that clip was, Dion managed to top it at the Life Burns Faster show on Saturday, Nov. 7. This time around, she was seen air drumming and dancing , while two seats away Jack Black was headbanging as if his life depended on it.…