So Taylor Swift may still be a few months out from walking down the aisle herself (if those July 3 wedding rumors are to be believed…), but she gave fans a preview of her “something blue” while attending the wedding of Travis Kelce’s Chiefs teammate George Karlaftis and his longtime love, Kaia Harris, in Glyfada over the weekend. Held at the One&Only Aesthesis luxury resort, the three-day celebration included 220 guests (per People ), and although it was reportedly a phone-free event, someone managed to grab a pic of Tay on the dance floor. It’s preeetty tough to see from the photos (the photographer was clearly trying to be discreet), but Taylor appears to be wearing a midi-length, backless dark-blue dress. Chic!! Meanwhile, Huffington Post Greece came through with more deets about the nuptials. According to reports, Blondie was seen “dancing late into the night” with both her fiancé and the newly wedded couple at the reception.…