The Sterile Cuckoo was adapted from a commercial.
`` Once Upon a Summertime '' is a song written by Johnny Mercer , Michel Legrand , Eddie Barclay and Eddy Marnay .. Johnny Mercer. Johnny Mercer. Michel Legrand. Michel Legrand. Eddie Barclay. Eddie Barclay. Eddy Marnay. Eddy Marnay. The French original is called La valse des lilas .