I Don't Know How to Love Him has been universally acclaimed as the high point of the "Jesus Christ Superstar" soundtrack since the album's September 1970 release; in 2003 "The Rough Guide to Cult Pop" would assess Elliman's performance: "It's rare to hear a singer combine such power and purity of tone in one song, and none of the famous singers who have covered this ballad since have come close." The choice for the first single release went, however, to the track "Superstar" by Murray Head. When a cover of "I Don't Know How to Love Him" by Helen Reddy began moving up the charts in the
Do You Want to Know a Secret (a UK no. 2) credited the composition to "McCartney-Lennon". The song was inspired by "I'm Wishing", a tune from Walt Disney’s 1937 animated film "Snow White and the Seven Dwarfs" which Lennon's mother, Julia Lennon, would sing to him as a child. The first two lines of the song in Disney's movie ("Want to know a secret? Promise not to tell?") come right after the opening lyrics ("You'll never know how much I really love you... You'll never know how much I really care..."). McCartney has said it was a "50–50 collaboration written to order", i.e., for Harrison to sing,