Sing along with the song thats "currently playing". Only "sing" one line at a time. Once one song ends, the next person starts another, if one guy screws up just repeat the line he said but correctly. don't select a song that no one knows. Make it at least semi-known.

I'll start it off

Still Alive - From Portal [Credits Music]

"This was a triumph"

I'm making a note here: HUGE SUCCESS.

(Hey RC. You should add this rule.

"If you want to post, but not actually sing to the song, just post in parentheses.

Like this:

(Hey I like this song, lol, what is it called?)
)

It's hard to overstate my satisfaction.

Aperture Science
(Lol Yay Sticky?)

We do what we must, because we can.

For The good Of all Of us Except the ones who are dead

But there's no sense crying over every mistake,

you just keep on trying to you run out of cake!

EDIT; @ tabion thats 2 lines.

And the Science Gets Done

(Damnit XD)
(listening to it now XD)

Never gona turn around and desert you.

and you make a neat gun for the people who are still alive!

I'm Not even angry...

(Tahtz 2 lines ZOMG! Lol)

I'm being so sincere right now.