Metallica drummer Lars Ulrich’s sons Layne and Myles covered The Beatles’ classic track “Eleanor Rigby.” The performance was part of Salesforce CEO Marc Benioff’s livestream from earlier this week.

Ulrich discussed the performance to Rolling Stone, stating:

“It was like this insane, three-minute Blue Cheer, crazy, garage-rock version of ‘Eleanor Rigby. Obviously, there’s been some incredible versions of ‘Eleanor Rigby’ along the way, but I’m pretty sure there’s never been one that had this kind of sound, this kind of feel, this kind of energy and madness to it. I was like, ‘You know what, boys? You done me proud.’”

Watch the clip below: