LARGO, Fla. — To parents with younger kids, Jack Hartmann is a household name. The 71-year-old has written and recorded over 1,500 children’s music videos. “I've always been fascinated and ...

“So, we do that early then we come back here,” said Hartmann. “And sometimes I’ll even be writing a song in the car as I drive.” Then it is studio time for the Jack Hartmann experienc ...

PINELLAS COUNTY, Fla. — When you sit behind the scenes watching Jack Hartmann make his nearly 1,800th YouTube video, you quickly realize why the children’s educational, singing sensation has ...