The Swifties have found yet another invisible string between Taylor Swift and her boyfriend, Travis Kelce. Kelce, 35, spoke to reporters during a press conference held on Wednesday, August 6, during the Kansas City Chiefs' 13th day of training camp. It is also the start of Kelce's 13th year on the Chiefs. Devoted fans of Swift, also 35, quickly remembered that the pop star's favorite number is, famously, 13.