Summertime and the livin' is easy
Fish are jumpin' and the cotton is fine
Oh, your daddy’s rich and your ma is good lookin'
So hush little baby, don’t you cry
One of these mornings
You’re goin' to rise up singing
Then you’ll spread your wings
And you’ll take the sky but till that morning
There’s a nothin' can harm you
With daddy and mammy standin' by
Their were many covers of this song, some of the best include Ella Fitzgerald and Louis Armstrong's, Billy Stewart's, Sam Cooke's, and George Gershwin's. No doubt someone already suggested you some, but these are (in my opinion) some of the best one's.
The song in Revolutionary Road is "Count Every Star" from 1950. I could listen to it every day forever and not get tired of it. To read about The Ravens, Google Marv Goldberg's article on the group. They made lota of great music starting in 1946.