A man sings and plays the guitar during brain surgery!

He is 33 years old, hails from Brazil and his name is Anthony Dias Kulkamp, the man, who when required to remain conscious during brain surgery sang "Yesterday" by the Beatles while accompanying himself on the guitar!

The doctors had to remove a brain tumor and wanted a real-time indicator of the brain functions of the patient, so Anthony begins to play and sing so that the doctors can monitor his skills during the operation itself.

Indeed, so far, everything seems to be going well ...