A dressed-down Katy Perry looked like she was taking the threat of swine flu seriously in Miami - as she held a hat tightly against her mouth.
The I Kissed A Girl singer wore a pink velour tracksuit and hid behind dark glasses as she wandered through the city, clutching at her face.
Her bizarre behaviour comes after details of the potentially deadly flu virus hit the news across the world - prompting thousands to buy protective facemasks.
The 25-year-old, who is touring Florida seemed eager to keep a low profile - a far cry from her usual flamboyant style.
I have such a girl crush on Katy Perry, it's insane 
