It’s been quite the harrowing year for Jimmy Kimmel — but things are looking up. The late-night host and wife Molly McNearney‘s baby boy William “Billy” John now 3 months old, had open heart surgery three days after his birth in April. And according to Kimmel in a new interview with The Hollywood Reporter, his son will need two more of the procedures, but is “doing great.” “Young Billy made his first visit to our office today.