WASHINGTON -- Organizers said it is was just a lark, but their gathering at the Jefferson Memorial Saturday night sparked a YouTube sensation after a woman was arrested.

Organizers invited people online for a 10-minute, midnight dance without music in honor of Jefferson's birthday. Twenty people showed up.

"There's a lot of different ways we could celebrate the idea of Thomas Jefferson. We thought we would dance quietly for 10 minutes," said Jason Talley, who brought on the dance.

Irritated memorial guards -- pointing to signs asking for quiet and respect for other visitors -- told the dancers to leave. They arrested one woman when they said she would not stop dancing and became resistant.

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The woman arrested, Mary Oberwetter, was charged with a misdemeanor for disturbing the peace. She told News4 Wednesday she is seeking legal advice and declined comment.

A spokesman for the D.C. attorney general said the city had not yet received legal papers about the case and declined comment.

The Jefferson Memorial, a testament to America's freedoms, was once freely open to visitors, but is now shrouded in part by barriers.

"The Jefferson Memorial can be a really noisy place. With school groups, it gets noisy," Talley said. "I just hope they don't start arresting those kids."