(NBC News) —Authorities performed a wellness check on Britney Spears after fans expressed concern over a video of her dancing with knives, a source close to the singer told NBC News on Thursday.

Spears, 41, is “fine,” the source said, adding: “This is overblown. She was expressing her freedom as she continues to do.”

The “Womanizer” singer posted the video on Instagram on Monday, writing in the caption, “I started playing in the kitchen with knives today.” Spears added that fans shouldn’t worry and that they weren’t real knives.

She posted again later saying she was simply copying Shakira, who danced with knives at her MTV Video Music Awards performance earlier this month.

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