Roger Waters joined former Pink Floyd colleague Nick Mason for a rendition of the band’s classic track “Set the Controls for the Heart of the Sun” in New York City last night.

The surprise guest spot took place at the Beacon Theatre during the first North American tour of Nick Mason’s Saucerful of Secrets, the band he recently formed to play early Floyd material. Waters also played Mason’s gong at one point, then returned at the end of the show to take a bow with the band