UPDATE 4/8/2019 2:20pm ET: Pitchfork reports that 'Guava Island' will premiere on YouTube at Coachella through the festival's official live stream. Scroll down for our original report about the project.
Yesterday, Spotify starting playing 30-second ads of Glover singing the song from the trailer, accompanied by a graphic that says "Saturday Night | April 13." The ad's link seems to lead to the RapCaviar playlist on Spotify, with a "Presented by Guava Island" byline. Check it out below.
Glover is due to perform as Childish Gambino at Coachella on Friday April 12, so it seems likely these are related events. This post will be updated when we have more information.