Okay, I guess since no one else has done it, I'll go ahead and start:

[Tommy_Carcetti]

(Ahem...)

Kumbaya my Lord, kumbaya
Kumbaya my Lord, kumbaya
Kumbaya my Lord, kumbaya
Oh Lord, kumbaya

[AllentownJake]

1. I prefer

Dont worry about a thing,
cause every little thing gonna be all right.
Singin: dont worry about a thing,
cause every little thing gonna be all right!

Rise up this mornin,
Smiled with the risin sun,
Three little birds
Pitch by my doorstep
Singin sweet songs
Of melodies pure and true,
Sayin, (this is my message to you-ou-ou:)

Singin: dont worry bout a thing,
cause every little thing gonna be all right.
Singin: dont worry (dont worry) bout a thing,
cause every little thing gonna be all right!

Rise up this mornin,
Smiled with the risin sun,
Three little birds
Pitch by my doorstep
Singin sweet songs
Of melodies pure and true,
Sayin, this is my message to you-ou-ou:

Singin: dont worry about a thing, worry about a thing, oh!
Every little thing gonna be all right. dont worry!
Singin: dont worry about a thing - I wont worry!
cause every little thing gonna be all right.

Singin: dont worry about a thing,
cause every little thing gonna be all right - I wont worry!
Singin: dont worry about a thing,
cause every little thing gonna be all right.
Singin: dont worry about a thing, oh no!
cause every little thing gonna be all right!

[A-Schwarzenegger]

2. And McGrumpy hollers out his door:

"You damn kids get off my damn lawn with your damn unity damn song!"

[mr_hat]

3. Dina, Dina show us yer leg?

[Arugula Latte]

4. Someone is uniting, my Lord, kumbaya