He’s singing a lot of backup, and he’s such a genius. I have been a fan of his for like 20 years. When I was writing these songs, my first thought of who I wanted to produce this was Sufjan, because I love how dreamy he can make music, and how whimsical, and how much character he has to everything that he makes. And I just felt like it would be the perfect energy for a children’s album: To blend my songwriting with his production and arranging and playing. You just hear his influence all over the album and I love it.

I was so happy he said yes because you never know if someone’s gonna want to make a children’s album with you, and we had never worked together. We had never even met before we started working on this.

https://pitchfork.com/news/john-legend-announces-sufjan-stevens-produced-childrens-album-shares-song-listen