To produce his version of ‘Moon River,’ Jacob Collier recorded himself singing 5,000 times and asked more than a few Huckleberry Friends to send a video of themselves singing the word “moon” in the key of B-flat. Chris Martin, Charlie Puth, Tori Kelly, David Crosby, Kimbra, Daniel Caesar, Merrill Garbus, JoJo, Darwin Deez, Herbie Hancock, Quincy Jones, Hans Zimmer, Steve Vai, Ty Dolla $ign and Lianne La Havas were just some of the respondees. ‘Moon River’ is from Djesse — Volume 2 to be released in July.