Don't know if this is the song you mean, worth a shot though. It's called "I'm in love with a wonderful guy" by Margaret Whiting from the film South Pacific.
I'm as corny as Kansas in August,
I'm as normal as blueberry pie.
No more a smart little girl with no heart,
I have found me a wonderful guy!
I am in a conventional dither,
With a conventional star in my eye.
And you will note there's a lump in my throat
When I speak of that wonderful guy!
I'm as trite and as gay as a daisy in May,
A cliche coming true!
I'm bromidic and bright as a moon happy night
Pouring light on the dew!
I'm as corny as Kansas in August,
High as a flag on the Fourth of July!
If you'll excuse an expression I use,
I'm in love, I'm in love,
I'm in love with a wonderful guy!