I haven't watched it in a while, but its highly likely to have been on the soundtrack to Ravenous, or rather deeply homaged in the Ravenous soundtrack. the soundtrack is part of its satirical black humour, before the twist and reveal. I'm assuming you've seen it, but just in case you haven't I won't elaborate other than to say its got a folk / western soundtrack which iirc homages that type of music.
Its been on the simpsons and a few other shows, and cartoons