Taylor Swift and Travis Kelce kept the party going after her electrifying performance of the Eras Tour in London on Sunday night, June 23. The A-list couple was spotted arriving at the private celebrity hotspot Chiltern Firehouse shortly after midnight on Monday, June 24, after the “Love Story” singer shockingly brought her boyfriend out on stage during her introduction into performing “I Can Do It With a Broken Heart.” For their date-night outing — where they were also joined by some famous friends, including Sophie Turner, her latest flame Peregrine Pearson and Ellie Goulding — Swift stepped…