This video from a Swedish kids' show is meant to teach children about their body parts. You won't be able to get the tune out of your brain, and you won't be able to un-see it, but it's totally worth it.
It starts off with a polite introduction: "Here comes the penis at full speed!"
Then it goes straight to crazytown: "He who has no pants, dangling penis and naked ass."
More introductions: "Snippe-dipp-dipp-snippedi-do! The vagina is awesome, yes it is!"
No age discrimination here: "Even on an old woman, the vagina is sitting there so elegant."
Life lesson: "So different with almost the same thing."
Educational: "Pee through the penis or the vagina if you're a girl."
Break it down! "The penis and vagina, what a lovely bunch! The vagina and penis singing our chorus."
Science: "The penis and the vagina are found on our body."
Um... "Popi-dopp-op-snippedi-snopp! Hanging and throwing on a small body."
<3 "Snippe-dipp-dipp-snippedi-do! The vagina is awesome, baby I love you."