Two titans join forces on “Only One,” the radiant first collaboration between Kanye West and Paul McCartney. Recorded in a Los Angeles bungalow in early 2014, the single finds McCartney unfurling a weightless Wurtlizer melody as West—channeling the spirit of his late mother, Dr. Donda West—delivers a powerful message of hope and joy to his daughter. Singular in sound, style, and feeling, it’s a cross-generational testament to the magic of collaboration.