Rihanna made a surprise appearance during Calvin Harris' Coachella set last night but we have a feeling that Calvin's girlfriend Tay-Tay may have had more of an inkling about it than the rest of us.

Now Taylor has shared a video of Lorde, the girls from HAIM, Karlie Kloss and her dancing like crazy to Calvin and Rihanna last night.

"I'll never forget this moment. So incredible!" the singer says of the video.

Between our special festival issue and all the coverage of Coachella, we are seriously pumped for festival season to begin in Hot Press HQ.

Check out Taylor's girl gang getting their groove on below.