"In early 2014, Paul McCartney and Kanye West first began working together in a small bungalow in Los Angeles . The process that would result in "Only One" began with a simple brainstorming session between the two: with McCartney improvising on the keyboards and Kanye vocally sketching and shaping ideas in a stream-of-consciousness riff," laments a recent press release marking the 12 midnight New Year's Eve release of Kanye & Paul McCartney 's abrupt new single. Although a collaboration between the two men who recorded such drastically different world-renown songs as "Hey Jude" and "Gold Digger," "Only One" could be likened to the unknown middle ground that might exist between 808's & Heartbreak and Let It Be ; further accented by background vocals from Taylor Gang signee Ty Dollar $ign , co-writer Kirby Lauryen , and a beat concocted by in-house producer Mike Dean , McCartney adds in a beautifully sparse ...