Watch Reuben And The Dark and Bullhorn Singers perform their new song ‘Midnight Sun,’ at the live recording from Lethbridge Alberta, Canada. The song was featured in a trailer for a brand new Martin Scorsese movie ‘Killers of the Flower Moon.’ The movie tells the true story of the murder of wealthy Indigenous people in Oklahoma in the 1920s, and stars Leonardo DiCaprio, Robert De Niro, and Lily Gladstone.