A couple of years ago I posted about Hamm's, and the lyrics are here. I remember the (color) commercials from the 70s, too.
Can you--or anyone--definitively make out those extra lyrics? They were apparently lost somewhere during the Eisenhower administration.
Wikipedia has the lyrics
NOTE: Blogspot has been eating some comments, and there doesn't seem to be anything I can do about it. IF your comment doesn't appear, it's not you, it's not me, it's the genuiuses at Google. Sorry--