It was featured in the movie Hard to Get, released November 1938, where it was sung by Dick Powell.
Originally, the song was recorded by Bing Crosby for the biggest-selling hit version, while other contemporaneous hit versions included recordings by Tommy Dorsey (with vocal by Edythe Wright) and Russ Morgan. It was also revived by Bobby Darin in 1961, reaching the charts again that year. The song has been recorded by many other artists (see below for a partial list) and is considered a popular standard.
Does your mother realize The stork delivered quite a prize The day he left you on the family tree? Does your dad appreciate That you're merely supergreat The miracle of any century? If they don't just send them both to me.
You must have been a beautiful baby You must have been a wonderful child When you were only starting to go to kindergarten I bet you drove the little boys wild.
And when it came to winning blue ribboms You must have shown the other kids how. I can see the judges' eyes as they handed you the prize You must have made the cutest bow.
You must've been a beautiful baby 'Cause baby, look at you now.