Jimmy Kimmel thanks hospitals for son's health, son Billy raises funds for hospitalized children on his 7th birthday.

Jimmy Kimmel thanked hospitals Children's Hospital Los Angeles and Cedars-Sinai on his son Billy's 7th birthday, crediting their staff for his son's health. Billy, who has had open-heart surgeries for a congenital heart defect, is now raising money for hospitalized children, asking friends to donate $7 each. Kimmel encourages others to help Billy reach his goal of raising $100 for sick children.