The Church of John Coltrane Tabernacle Choir was a musical group that was listed on a poster for a music festival held at Bewlay Island in Stardust City in 2395. (PIC: "Nepenthe")
This fictional group was presumably named after jazz saxophonist John Coltrane, and a real-life church existing in San Francisco, which worships the late musician as God incarnate. [1]