simple, post a line from a song and the next person tries to guess it and posts there own line from a song.

e.g.

I post "Id Hate To Look Into Thoose Eyes and see an ounce of pain"
then someone else posts "Guns N Roses - Sweet Child Of Mine" and there lyric and so on

OK, let's give it a try

"Father McKenzie, writing the words of a sermon that no one will hear"

Elanor Rigby by The Beatles

"Perhaps he's dead, I'll just make sure, Pick this book up off the floor"

Borris the Spider -by The Who

"Our weapons were our instruments made from timber and steel, we never yielded to conformity but stood like kings in a chariot thats riding on a record wheel"

P.S I think Google kinda takes the edge off this game :P