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(CNN) - An invitation to a White House dance party Saturday night to celebrate Michelle Obama's 50th birthday is the hottest ticket in town.
Think less inaugural ball, and more "Saturday Night Fever." While the First Lady may be sending tweets about joining AARP, she's known for her dancing prowess. The party's host – the President - has told guests to wear comfortable shoes.
"She's got a really fun loving streak. She loves to dance. She loves music and why not, you know, you only turn 50 once so why not make the most of it," said The Chicago Tribune's Katherine Skiba, who has covered the First Lady since the Obamas entered the White House in 2009.
Americans have seen some of the First Lady's moves before: "doing the Dougie" on "Late Night with Jimmy Fallon" last year, and grooving with talk show host Ellen DeGeneres back in 2008.
Saturday's celebration is set to last from 9 p.m. to midnight, and is being dubbed "Snacks & Sips & Dancing & Dessert."
"My guess is it won't be a cast of thousands. It might be big but not super big," said The Chicago Sun Times' Lynn Sweet.
The White House made a special request that will affect how much guests can share about the event.
"The invitation does say no camera, no photographs. Well, I've covered many receptions at the White House, and even big shots like to take pictures," said Sweet.
The Obamas' inauguration after-party last year drew the likes of Usher, Katy Perry, and Beyonce - who is rumored to be performing at Saturday's event.