We now have proof thatTaylor Swift'sFriday night was a blast,thanks to an video Swift shared on Instagram last night.
She spent the evening celebrating the 21st birthday of Karlie Kloss's twin sisters,Kimberly and Kariann,at Caesars Palace's OMNIA Nightclub in Vegas—and it looks like good times were had during boyfriend Calvin Harris' set:
And of course there was a squad along for the ride: Several members of Haim attended the celebration,as did Swift's younger brother,Austin.
Kloss also shared this fun vid from Vegas with her sisters:
Wish we were there!
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