#hippiedaze. A bit of an obvious choice I know, and this may be sacrilege, but as much as I love Joni and CSN&Y; this is the version I seem to listen to these days.
4
By the time I got to Woodstock,
They were half a million strong,
Everywhere there was songs and celebration,
And I dreamed I saw the bombers,
Riding shotgun in the sky,
Turning into butterflies,
Above our nation.