Taylor Swift was recently spotted celebrating pal Karlie Kloss's birthday at Omnia Nightclub in Las Vegas and look who was there to perform...his DJ boyfriend Calvin Harris.
The 26-year-old singer was seen cheering Harris with supermodel pals Karlie Kloss and her twin sisters, Kimberly and Kariann Kloss, who were also celebrating their 21st birthday, TMZ.com reports.
The 'Shake It Off' hit-maker looked stunning in a charcoal sequined dress as she danced along to some the 'Feel So Close' hit-maker's biggest hits, including 'Summer,' and 'How Deep Is Your Love.'
Others who joined Swift at the nightclub were Haim, Serayah, her younger brother Austin Swift and YouTube star Todrick Hall and all partied hard in Harris' DJ booth.