As we get closer to the forthcoming release of Kurt Cobain: Montage of Heck, the new Nirvana documentary coming to theaters and HBO, more never-before-seen content is surfacing. Today, we get yet another snippet of a previously unheard vocal from the late singer.

Listen above to Cobain cover the Paul McCartney-penned "And I Love Her," taken off The Beatles' 1964 album A Hard Day's Night. Like the unnamed song snippet we heard earlier this month, the cover is extremely lo-fi with Cobain's vocals barely distinguishable if it weren't for the familiar melody. Despite the lyrics of everlasting love, there's a haunting, indisputable melancholy here featuring just Kurt and an acoustic guitar.

Longtime Nirvana fans know The Beatles were a huge influence on the young musician, who called John Lennon his idol and famously wrote the early Nirvana song "About a Girl" after spending hours upon hours listening to 1964 LP Meet the Beatles!

The cover is the latest fascinating fossil uncovered ahead of Montage of Heck. It's going to be shown in select theaters on April 24, before airing on HBO on May 4.