Lyrics aren't always meant to be taken literally. Nobody should have to endure some obnoxious guy at a bar pedantically explaining that the sun never goes around the moon. (I don't know why you're at a bar that plays Vanessa Williams songs from two decades ago, but just go with it.)
But some artists just get it plain wrong. Whether it's due to lack of research, laziness or simply a strident desire to stick to the rhyme scheme, there are occasions where creative license turns to pure fiction.