Charles DeCarli, director of the UC Davis Alzheimer's Disease Center, was distraught when he heard that Bruce Willis had been diagnosed with a brain disease a few weeks ago — partly because he knows better than most what it means.
The news took him back to the time in Washington, D.C., when he saw the film star perform with his band.
DeCarli said Willis "plays a pretty wicked harmonica" and "wasn't a totally bad singer."