Former Pink Floyd drummer Nick Mason and his band Saucerful of Secrets were at the Beacon Theatre in New York City on Thursday night for the latest stop on their North American tour. Unbeknownst to fans in the audience, the band, which performs Pink Floyd material from their pre-Dark Side of the Moon era, Roger Waters was also in the venue last night, and gave everyone a joyous surprise when he came out to sing on “Set the Controls for the Heart of the Sun” towards the latter half of the set. The song originally appeared on the band’s 1968 album, A Saucerful of Secrets.

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The rare reunion between former bandmates (the two’s first since 2011) began following an introduction of Waters to the stage by Mason, who banged away on a gong located behind his drumset during an ominous red-themed opening. The audience gradually erupted into applause as Waters made his way onto the stage to share a hug with his old friend. The thrilling performance of the mystic rock tune stretched out to a mesmerizing 13-minutes in length, with Waters finding his way over to the gong after finishing the song’s lyrical section. Fans can check out the video below to watch the entire reunion performance from Thursday’s show.

Nick Mason’s Saucerful of Secrets with Roger Waters – “Set the Controls for the Heart of the Sun”

[Video: allbearsrule]

Waters would reportedly return to the stage to take a bow with the band following the show’s encore.

Tickets for Nick Mason’s Saucerful Of Secrets’ sold-out return to the Beacon Theatre on Friday are likely in pretty high demand on the secondary market today following last night’s thrilling guest sit-in. The band will then head to Philadelphia and Washington, D.C. this weekend for the final two shows of their winter/spring tour.

[H/T BrooklynVegan]