Taylor Swift and Travis Kelce are goin’ to the chapel giant arena and they’re gonna get married! The couple are reportedly making it official at New York City’s famed Madison Square Garden today, and 100 of their loved ones gathered together last night to kick things off at the rehearsal dinner.

We have a whole list of celebs who attended last night’s dinner this way, but everyone seems to have left holding a mysterious velvet gift box embossed with Taylor and Travis’s initials with two hearts.

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So, what’s in the box? Page Six reports that each guest left the rehearsal dinner with a single large champagne flute, encrusted with real diamonds. Per the outlet, “the boxes were presented with an image of what appeared to be the garden from the couple’s famed engagement photos printed on frayed fabric placed on top.” There was also a card and wax seal.

TBD on what gifts the couple hands out tonight, but we might not see pics with the amount of security Taylor and Travis have planned. MSG doesn’t have windows (meaning paps won’t be able to get shots) and guests will be able to arrive and leave the underground parking lot in blackout cars.