Pop superstar Taylor Swift took her seat at the Super Bowl on Sunday to watch boyfriend Travis Kelce and his Kansas City Chiefs take on the San Francisco 49ers, providing a jolt of megawatt excitement to the Vegas blockbuster and ending a week-long will-she-won’t-she saga that has dominated the lead-up to the football event of the year. Swift's arrival some two hours before kick-off sent an almost palpable frisson around the Allegiant Stadium and social media rapidly filled with pictures and video footage of the singer dressed in a black top, black jeans and with a red jacket slung over her shoulder walking through the bowels of the stadium with friends Blake Lively and Ice Spice. A punishing travel schedule in which she has flown from Japan to the U.S. and will then jet to Australia for tour commitments meant her presence was far from a foregone conclusion, and when giant television screens showed Swift for the first time, a ripple of cheers went around the still-mostly