Jack Walter Keller was an American composer, songwriter and record producer. He co-wrote, with Howard Greenfield and others, several pop hits in the late 1950s and early 1960s, including "Just Between You and Me", "Everybody's Somebody's Fool", "My Heart Has a Mind of Its Own", "Venus in Blue Jeans" and "Run to Him". He also wrote the theme songs for TV series including Bewitched and Gidget, and later worked in Los Angeles – where he wrote for, and produced, The Monkees – and in Nashville.

Howard Greenfield was an American lyricist and songwriter, who for several years in the 1960s worked out of the famous Brill Building. He is best known for his successful songwriting collaborations, including one with Neil Sedaka from the late 1950s to the mid-1970s, and near-simultaneous songwriting partnerships with Jack Keller and Helen Miller throughout most of the 1960s.