Bret MichaelsWhile rocker Bret Michaels has some daunting medical challenges ahead of him, he has top medical care and a secret weapon -- his rock and roll heart.

"Bret's sheer will to live and fully recover is undeniable," Dr. Joseph Zabramski, who's been treating the 47-year-old 'Celebrity Apprentice' star since he suffered a brain hemorrhage, said in a statement released Friday. "He has an unbelievable fight in him."

Zabramski painted a dramatic picture of the first moments of Michaels' excruciating ordeal on April 22.

"What kept him alive at the moment of the hemorrhage was that he did not want his family to wake up and see him lying unconscious in the middle of the floor," said Zabramski.