As part of their three-day stop at New York's Terminal 5, Disclosure brought out some new friends to close it all out.
In addition to Sam Smith, who's been performing all weekend with the producer duo, Mary J. Blige took the stage on Sunday night to perform "F for You."
As Smith pointed out in an Instagram post later in the evening, Sting was also in the audience. The foursome was photographed together after the show, as seen below.
Watch the video of Blige performing via fan footage. You can also catch Disclosure on Late Night with Jimmy Fallon, as they'll be the musical guest Monday night.