Bobby wrote and performed “Multiplication” for the movie
Come September, where he met and fell in love with Sandy.
It was the B side recording to “Irresistible You.”
The single (ATCO 6214) reached number 15 on the Billboard singles chart.
"Multiplication" can be found on these CDs.
Cover and back of the French EP (Atlantic #212047). (Thanks to Hakim DeFiganieres)