America's Got Talent Piers Morgan "shocked" by Hasselhoff's 'America's Got Talent' exit 01/07/2010 Piers Morgan said he was as "shocked as anyone" to learn that David Hasselhoff is leaving America's Got Talent. Read More RELATED NEWS 'America's Got Talent' winner Michael Grimm shares update on mystery illness after weeks in the hospital'America's Got Talent' winner Michael Grimm facing "really long road" to recovery after mystery illnessJackie Evancho to sing 'Star-Spangled Banner' at Donald Trump's presidential inauguration TAGS: America's Got Talent Simon Cowell David Hasselhoff Piers Morgan Hoda Kotb