WASHINGTON (AP) — Michelle Obama wants to jump into the Guinness World Records book next week by helping break the title for the most people doing jumping jacks in a 24-hour period.

The first lady will lead hundreds of local children in doing one minute of jumping jacks on the South Lawn on Tuesday.

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The event will be reviewed by an official from Guinness World Records and will signal the beginning of a 24-hour challenge.

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To break the record, more than 20,000 people around the world will need to do jumping jacks for a minute.

National Geographic Kids is leading the effort to break the record.

The exact record to break is 20,425 jumpers, set on March 22, 2011.

Copyright 2011 The Associated Press.