Billy was born in 2017 with congenital heart disease and has had at least three open-heart surgeries ...

He posted a rare photo of 9-year-old Billy on a fishing trip on April 21. Kimmel shares Billy and his daughter Jane, 10, with wife Molly McNearney, as well as daughter Katie, 33, and son Kevin, 31, ...

Jimmy Kimmel is a devoted father to four children, from two different marriages. Learn more about Jimmy's kids here!

Kimmel also shared how fans can support other children going through health issues.

Valerie Macon/AFP via Getty Images, FILE - PHOTO: In this June 11, 2019, file photo, television host Jimmy Kimmel, wife Molly ...

Jimmy Kimmel’s youngest son is celebrating a new milestone. The Jimmy Kimmel Live! host, 58, celebrated his son Billy’s 9th birthday on Instagram on Tuesday, April 21, alongside a photo of what ...

Jimmy Kimmel‘s son is one year away from turning double digits. The late-night host took to Instagram on Tuesday, April 21, to celebrate his son Billy’s 9th birthday. “Our boy Billy turns 9 today and ...

Jimmy Kimmel celebrated his son Billy’s 9th birthday by sharing a positive health update, nearly two years after Billy’s third open-heart surgery for congenital heart disease. The late-night host ...