Updated earlier during live coverage:
After the lunch reception hosted by the Queen for the 600 guests, Harry and Meghan changed outfits and hopped in their new vintage-style electric Jaguar to head to the Frogmore House private reception hosted by Prince Charles. The license plate on the car had a hidden message, their wedding date, "E190518."
Harry and Meghan will now have the titles of the Duke and Duchess of Sussex.
The couple just walked through the chapel and emerged out on the front steps to give the world their first kiss!
The newlyweds have left the chapel to sign their registry, the guests remain seated as 19-year-old cellist Sheku Kanneh-Mason plays for the audience; he was personally invited by Markle to perform.
Archbishop of Canterbury Justin Welby has officially proclaimed them as husband and wife!
The two just exchanged rings.
The Kingdom Choir is singing an amazing rendition of "Stand By Me."
A sermon is currently being delivered by Michael Curry, the Presiding Bishop of the American Anglican Church. During his message on "the power of love," he quoted Dr. Martin Luther King Jr.
We did some lip reading, and it appears Harry said "You look amazing, absolutely gorgeous" when he first saw Meghan.
Meghan Markle has arrived! The ceremony is officially underway...
Queen Elizabeth and Prince Phillip are now seated, everyone stood when they entered the chapel.
Prince Charles and Camilla Bowles just arrived, they were married at this same chapel back in 2005.
Harry and Prince William just made their grand entrance, both looking dapper in the traditional frockcoat uniform of the Blues and Royals. The Queen is now on her way to the chapel.
Meghan Markle is on her way to Windsor Castle with her mother, Doria Ragland! We're moments away from getting our first look at her dress.
James Corden and his wife have arrived, along with Serena Williams and Alexis Ohanian. Serena's hat is amazing!
As we reported, Meghan's co-stars from "Suits" were invited, and Gabriel Macht just showed up with the rest of the crew, along with Markle's BFF Priyanka Chopra.
As of now guests are arriving, including big celebs like Oprah and Idris Elba! O and her hat have already made quite a splash. George Clooney also arrived, as well as Victoria and David Beckham.
Kensington Palace has also just announced the information on Harry and Meghan's wedding rings: "Ms. Markle's ring has been fashioned from a piece of Welsh Gold, gifted by Her Majesty The Queen. Prince Harry's ring will be a Platinum Band with a textured finish."
We've got our caffeinated tea and will be up into the wee hours covering the wedding, so settle in and watch the livestream. Also, refresh every now and then for new updates!
Fun Fact: Meghan and Harry will be the 16th royal couple to be married at Windsor Castle.