"War Pigs" is a great song off English heavy metal band Black Sabbath. It is the opening track from their 1970 album Paranoid. Here the Swedish duo First Aid Kit offer a lovely version of the song.
First Aid Kit - War Pigs - Roskilde 2015
First Aid Kit - War Pigs (Black Sabbath) - Live At Best Kept Secret
And here’s the original by Black Sabbath : War Pigs