Footage of a doctor holding a dance party at a hospital before undergoing surgery to remove both of her breasts has been viewed by millions online.
Deborah Cohan danced with the medical team at Mt Zion hospital in San Francisco just minutes before her own procedure for a double mastectomy.
More than 4 million people have viewed the six minute video on YouTube of the mother-of-two getting down to Beyonce's Get Me Bodied, and thousands have left positive messages.
Leasa Fortune posted on the video: "I am awed and humbled by her courage."
Another user commented: "Deb, you are the ultimate encouragement to every woman, patient and person. If only more people would look at life the way you do. Sending you love and a healthy recovery."