Kanye West enlisted Wilson Phillips to provide backing vocals for the track. The group, which consists of sisters Carnie and Wendy Wilson with Chynna Phillips, rose to prominence in the early '90s charting with three Hot 100 #1 hits, "Hold On
," "Release Me
" and "You're In Love
." "He said, 'When I think of authenticity and I think of angelic, I think of you,'" Carnie Wilson told Billboard
After playing a preview of the song to Wilson Phillips, together with "Only One
" and Madonna's "Illuminati
," West instructed the trio to take the track home to work on their vocal harmonies. "We didn't know if we were singing on a section of the song - originally it was supposed to be just the bridge," Carnie said. "He gave us sole freedom to just do what we do. We just went in there and let loose."