Jimmy Kimmel's 7-month-old son, whose heart condition has made the late-night host an unlikely player in American politics, had a successful second round of surgery on Monday.
ABC announced the surgery in a statement, and said he will take time off from " Jimmy Kimmel Live" to be with his family.
Chris Pratt will be the first of several guest hosts filling in for the 50-year-old Kimmel, followed by Tracee Ellis Ross, Neil Patrick Harris and Melissa McCarthy.