This is the second single from Australian alternative rock band Jet's third album, Shaka Rock. It was debuted at a secret gig in Melbourne in November 2008.
The song's riff was written by the band's drummer Chris Cester on a bass guitar.
Jet guitarist Cameron Muncey used a Gibson Melody Maker on this track, which he bought in Austin Texas where part of the album was recorded. He told Gibson.com: "It's so light you can practically hold it with your index finger. I ended up getting two amazing guitar tracks out of it. One was the slide in the last song, 'She Holds a Grudge,' and the other was 'Black Heart.' The sound of that guitar is really cool."