[1] Paul McCartney has cited John Lennon's Bungalow Bill, released in 1968, as among the first animal rights songs.
[2] Popular themes include anti-whaling (prompted by the Save the Whales movement),[1][3][4] opposition to hunting, animal testing and vegetarianism.
[5] Bullfighting has been a prominent theme in Spain and some Latin American countries; while folk and pop music have traditionally identified with bullfighting traditions, several ska, rock and punk groups have emerged which oppose them.
[7][8] An increase in Animal Liberation Front activism in the 1990s corresponded with the rise of vegan straight edge and hardline bands.
[9][10] The more peaceful Krishnacore subgenre, which also advocates vegetarianism and animal rights, developed around this time too.