"Mission Statement" off of Mandatory Fun is totally a style parody of Crosby, Stills, and Nash. Pretty funny too, because it takes the sound of a free love hippie group from the 60's and uses it to ramble off a bunch of corporate buzz words.
I could see it being a straight parody of their song "Carry On", but Al usually sticks a lot closer to the original arrangement when doing song parodies.
It'S nOt A bUbBlE!