Ahaha! I LOVE the laugh - it's totally evil Jemaine! LOL!
Love the line "I was tall... over one foot two!", And the rap is "su-per-delicious"!
I'm betting Jemaine did write it - at least the lyrics, no-one but a Conchord can rhyme like that - I'll have you rotisseried!
I'm also willing to bet that the line "I'll fill your cheese balls with weevils" was originally "I'll fill your cheezels with weevils" (a much a better rhyme!) but it got changed cos no-one would know what a cheezel is -
I'm right about that aren't I, you guys don't have cheezels (an iconic NZ/OZ snack) do you?
I wasn't wildly keen to see this movie before, but if it's got singing Nigels in it I'll be in the queue!