"Piano Man" James Slater — who's penned hits for Rascal Flatts, Martina McBride and many more — put on a rousing show for patients last week at the Monroe Carell Jr. Children's Hospital at Vanderbilt. The event was in celebration of the upcoming 39th Annual Music City Tennis Invitational tournament on April 21 and 22, which raises funds for the Center for Child Development at Children's Hospital.