ABC News London Correspondent Cheri Preston, across the street from Windsor Palace ahead of the royal wedding

Britain's Prince Harry and his fiancee Meghan Markle pose for photographers during a photocall in the grounds of Kensington Palace in London, Monday Nov. 27, 2017. Britain's royal palace says Prince Harry and actress Meghan Markle are engaged and will marry in the spring of 2018. (AP Photo/Matt Dunham)

ABC News London Correspondent Cheri Preston previews the royal wedding of Prince Harry and Meghan Markle, taking place Saturday at 6 a.m. CDT. Alright, anglophiles, get up, get out your oversized hats and drink some English tea!

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