Back at her Caribbean retreat on St. Lucia for barely a week, and Amy Winehouse is already up to her usual antics.

The troubled singer reportedly shocked fellow resort guests by streaking half-naked through a kid-packed pool area after being told she couldn’t hang out on the beach topless, according to the Daily Mail.

“Everyone was shocked,” said an onlooker. “One minute Amy was relaxing with friends on the beach and the next she was running around half-naked.”