Prince William, Kate Middleton Complete Final Wedding Rehearsal

The Royal Wedding
 Optic Photos/Pacific Coast News

It's almost show time!

Prince William and Kate Middleton were ushered into a side entrance of Westminster Abbey on Wednesday night to complete a final run-through of Friday's wedding ceremony.

The twosome arrived in a chauffeur-driven car around 7:30 p.m. with their wedding party, which included Prince Harry, 26, and Pippa Middleton, 27. The rest of Kate's immediate family — including her parents, Michael and Carole, and brother James — were also in attendance.

Earlier in the day, Kate, 29, was spotted entering Clarence House through the visitors entrance (she's still a visitor at the royal residence until Friday). When she emerged around 4 p.m., she carried a sizable brown cardboard box — contents unknown — into the trunk of her Audi A3.

After re-entering Clarence House, Kate left about an hour later, chatting on her cell phone, warmly greeting a pal, and carrying her own dress bag.

"Everyone's happy," a Clarence House worker told Us Weekly late Wednesday. "The atmosphere is really great!"

For more on the Royal Wedding, including rare photos, interviews with family and friends, details on Kate's new life as a princess and a tour of their lavish homes, order a copy of Us Weekly's Will & Kate: The Royal Wedding now.

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