My husband sings this song to the baby all the time with the modified lyric of "and would you cry, if I stole your pacifier?" You don't have to listen to the whole song, this is just to get you the right tune.
In other news, here's Magnus at Halloween. Ridiculous, how fun it is to dress up a baby for that holiday.
This is what he wore underneath the pea pod
It glowed in the dark, a fact I noticed in the middle of the night when I got up to feed him and saw that he'd gotten a glowing arm out of his swaddle.