Calvin Harris brought the first weekend of Coachella to a close last night. (Listeners averse to his arena-friendly electronic compositions could catch Deafhaven or Nosaj Thing.) The producer's enduring pop hit remains "We Found Love," his 2011 collaboration with Rihanna, and she was kind enough to make a surprise appearance during Harris' set last night. She smiled and twirled as the beat bumped and the crowd—including Haim, Lorde, and Taylor Swift—sang along. On Instagram, Swift wrote, "I'll NEVER forget this moment."
Watch the performance above.