The soft ballad, which West said was inspired by his daughter, features the vocals of the world-famous rapper and former Beatle McCartney on the organ.
The lullaby-like collaboration has been in the works since early 2014, when the two met in a bungalow in Los Angeles, according to a statement from West’s label Def Jam recordings.
“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,” it said.
The song was inspired by West’s daughter North, who was sitting in his lap when he sang to her, “Hello my only one.”
West said his own mother used to sing those words to him as a child.