What does it take to pull off TODAY's Halloween bash? Sara Haines takes you through the months of planning and preparation.

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Check out images of all of our anchors (including special guest Meredith!). And read about our big celebration here. 

TODAY held a regal affair on the plaza this morning as our anchors dressed up as participants in the royal wedding.

Read all about the event here. Look through a slideshow of all of the images here. And check out our anchors' costumes below:

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Who do you think dressed up in the best costume? Vote on Facebook.

The weekend TODAY team celebrated Halloween a bit early this year with a Kardashian red-carpet affair – hosted by the one and only Melissa Rivers!

Lester dressed up in his finest tank top to pull of Bruce Jenner's Olympic look. He was joined by Janice Huff, who dressed up as Kris Jenner. 

Amy was Kim Kardashian and Jenna was Khloe. CNBC's Melissa Francis joined the gang as Kourtney. 

Watch the costume reveal above! 

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Whose costume was most convincing during Weekend TODAY's Halloween Extravaganza? Vote on Facebook.

And what does it take to pull off dressing up like the Kardashians? The real-life family gave our anchors some pointers. 

Our weekend TODAY team also celebrated Halloween by visiting a prison many say is haunted with SyFy's "Ghost Hunters" team. Read about their adventures here. 

We all love a good ghost story this time of year. Our brave anchors decided to star in their own this weekend.

Lester, Amy and Jenna went inside one of the country's oldest institutions, which is considered by many in the paranormal community to be haunted.

They headed to Eastern State Penitentiary with the crew from SyFy's "Ghost Hunters." It's familiar ground for them: The "Ghost Hunters" cameras recorded what they believe to be an apparition in a previous episode.

Did our anchors make it through the night? And if so, did they hear or see a ghost? Watch the two-part series below:

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With Halloween fast approaching, our weekend TODAY anchors shared the movies that keep them up at night.

Lester said he loves the scene in "Alien" where the creature pops out of a man's stomach, whereas Amy said "The Exorcism of Emily Rose" still gives her chills.

Jenna's choice was a bit more unconventional: "Jaws 2." "That shark was like the end of the world to me," she said. "Each tooth was like an animal!"

Lester and Amy laughed at the choice. "It's just so not scary!" Amy said.

But none of them had anything on the news reader, Melissa Francis. Melissa acted in the horror film "Bad Dreams" in the ninth grade.

"It's not a Jaws 2, but looks really scary," Lester joked.

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Watch the fun segment above, including a few of Melissa's big scenes. And let us know your favorite horror flick in the comments below. Our TODAY.com Entertainment team shared their favorite spooktacular movies here.

Savannah reveals her excitement and nerves surrounding TODAY's annual costume reveal, which is a big deal for TODAY. She anticipates what it will be like to dress up with the gang and remembers Halloween as a child.

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Are you excited for Monday's Halloween show? If you're in New York City, come to the plaza in your best costume. You could win a chance to meet Justin Bieber.

It's almost scary how into the Halloween spirit we get at TODAY.

This year will be no exception! Tune in Monday morning to see our great costumes.

And we want YOU to get into the act as well. Come on down to Rockefeller Center's plaza and show off your costume. The best ones could win VIP passes to Justin Bieber's live concert in November. And you could even meet Justin in person.

Want to relive previous Halloweens on TODAY? Check out our costumes in 2010, 2009, 2008, 2007, 2006 and 2005.

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And tell us in the comments below on who you think our anchors should dress up as this year.

Amy's two kids are going trick-or-treating for the first time this year -- and she says she's more excited about it than her kids!

They've celebrated in previous years at New York City's Museum of Natural History.

But now that Amy's family lives outside of the city, her two daughters can experience the amazing childhood tradition like millions of other kids across the nation.

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This year TODAY will be celebrating Halloween on Friday, Oct. 29. Join us on Rockefeller Plaza in your best costume! The best costume could win a prize!

Jenna Wolfe, Jenna Bush Hager and Bobbie Thomas tell us about their favorite Halloween memories in a fun Web-only clip below. Check it out below, and let us know in the comments what you remember most about the spooky holiday!

Ann Curry and Natalie Morales also chatted this morning about their favorite costumes from Halloweens past. Relive some of the TODAY Halloween celebrations below:

This year TODAY will be celebrating Halloween on Friday, Oct. 29.

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Join us on Rockefeller Plaza in your best costume!