New Delhi, July 3 -- the list appearing on celebrity news sites Friday afternoon read less like a guest roster and more like a casting call for something nobody has fully explained: what it means when the world's biggest pop star and an NFL superstar get married at the world's most famous arena on July 4th weekend.

Taylor Swift and Travis Kelce are getting married at Madison Square Garden today.

The ceremony on the arena floor begins at 5:30 p.m. Cocktails started an hour and a half earlier on the sixth-floor concourse. The reception runs until 2 a.m. Roughly 1,000 guests are in attendance in black tie. Equipment labeled "Bon Jovi Wardrobe" was spotted being wheeled into the building Thursday night, suggesting Jon Bon Jovi may perform a...