Posters have popped in London advertising a Diana Ross and Tame Impala collaboration, NME reports. The poster says "coming soon," and their names sit together atop a list that also includes Phoebe Bridgers, St. Vincent, Weyes Blood, Tierra Whack, BROCKHAMPTON, Brittany Howard, Kali Uchis, Caroline Polachek, Thundercat, RZA, Gary Clark Jr, H.E.R., Jack Antonoff's band Bleachers, and more. At the bottom, it says "produced by Jack Antonoff."
As others have pointed out, the poster includes a picture of a minion beneath Diana's name, and Jack also posted a picture of a minion (with the same color scheme and illustrated style as the poster) to his Instagram stories, sparking speculation that this poster is for the soundtrack to the upcoming film Minions: The Rise of Gru.