Martha (Paul McCartney)
"Martha My Dear," on the Beatles' White Album, is about an Old English sheepdog, his first-ever pet, not a human girl. "Our relationship was platonic, believe me," Paul McCartney joked. "I remember John being amazed to see me being so loving to an animal. He said, 'I've never seen you like that before.' I've since thought, you know, he wouldn't have. It's only when you're cuddling around with a dog that you're in that mode, and she was a very cuddly dog."