Here's how it works: person posts line of a song.
next person takes last letter of 1st persons line and finds a line in a different song that begins with the letter.
next person does same.
Ex: P1: As i walk through the valley where i harvest my grain
P2: Number nine, number nine, number nine, number nine...
and so on.
start: I am the eggman, they are the eggmen, i am the walrus, coocoo c'choo.