Jimmy Kimmel ?s 7-month-old-son, Billy, had a second heart surgery on Monday, December 4. Celebrity Health Scares ABC announced the baby?s procedure in a statement, saying, ?Jimmy?s son Billy had a scheduled and successful heart surgery this morning.? The network added that while Kimmel is with his family, his late-night talk show will be helmed this week by celebrity guest hosts Chris Pratt, Tracee ...