The first act of pop sensation Taylor Swift’s wedding to NFL star Travis Kelce kicked off Thursday, with a rehearsal dinner for 100 guests ahead of a star-studded extravaganza at the famed Madison Square Garden.The billionaire singer and three-time Super Bowl champion, both 36, have kept fans guessing, but media reports describe an over-the-top celebration befitting one of the world’s most famous couples.The A-list festivities kicked off Thursday evening with an exclusive dinner for 100 invitees at the Garden, the storied sports arena in the heart of Manhattan.A succession of SUVs, believed to be carrying guests, arrived at a privacy tent outside the Garden while fans buzzed around nearby for a peek at the action.An SUV believed to be transporting Taylor Swift arrives at Madison Square Garden on Thursday. Photo: Reuters“She is the biggest thing in America – like she is our royalty, she is our queen, she is everything,” said Alyssa Heinen, 24, from Manhattan.