There’s a fun little Easter egg hidden within the first episode of Foo Fighters’ HBO series, Sonic Highways. As Alternative Nation points out, the episode features unreleased footage of Nirvana’s video for “Heart Shaped Box”. Specifically, the footage sees the trio swapping instruments, with Krist Novoselic on drums, Kurt Cobain on bass, and an overexposed Dave Grohl fronting the band. There are also several closeups shots of the band performing in normal and particularly vibrant color.
See a few photos from the footage below — or, watch the full episode of Sonic Highways at HBO’s website.