Bernard Alfred "Jack" Nitzsche was an American musician, arranger, songwriter, composer, and record producer. He came to prominence in the early 1960s as the right-hand-man of producer Phil Spector, and went on to work with the Rolling Stones, Neil Young, and others. He worked extensively in film scores for the films Performance, The Exorcist and One Flew Over the Cuckoo's Nest. In 1983, he won the Academy Award for Best Original Song for co-writing "Up Where We Belong" with Buffy Sainte-Marie.

Harvey Phillip "Phil" Spector was an American record producer and songwriter best known for his innovative recording practices and entrepreneurship in the 1960s and his two trials and conviction for murder in the 2000s. Spector developed the Wall of Sound, a production style that is characterized for its diffusion of tone colors and dense orchestral sound, which he described as a "Wagnerian" approach to rock and roll. He is widely regarded as one of the most influential figures in pop music history and one of the most successful producers of the 1960s.