That song.

Irrelevant thought of the day: I wish whoever'd come up with the Happy Birthday song had chosen a less acrobatic song. I'm talking about the octave leap on the third Happy Birthday (and not that there's not build-up; first there's a perfect fourth jump, and then a perfect fifth jump, and then oh my God there's a whole octave!) Most people manage to miss the note entirely. Not to mention the minor sixth that appears later.