"Pigs on the Wing" is a two-part song by English rock band Pink Floyd from their 1977 concept album Animals, opening and closing the album. According to various interviews, it was written by Roger Waters as a declaration of love to his new wife Carolyne Christie. The song is significantly different from the other three songs on the album, "Dogs", "Pigs" and "Sheep", in that the other songs are dark, whereas this one is lighter-themed, as well as also being much shorter in duration, with each part at under a minute and a half while the others are all at least 10 minutes in length.