A capella Monkees song, appearing on their 1967 album, Headquarters (Colgems COS-103). Each singer comes in after the previous person has spoken two lines. Each singer starts by speaking the word, "zilch," then follows by repeating a phrase over and over:

Mike screws up the rhythm first by tripping over his sentence. The boys start in again, but Mickey, perhaps intentionally, screws up his line and starts speaking gibberish.