Weeks after Jimmy Kimmel’s seven-month-old son, Billy, had to postpone his follow-up open-heart surgery because the Kimmel family came down with colds, the baby underwent his second operation in early December. And now, the boy has made a guest appearance on Jimmy Kimmel Live with his famous daddy!

“I was out last week — because this guy had heart surgery. But look he’s fine everybody, he may have pooped but he’s fine,” Jimmy, 50, shared onstage. “Daddy cries on TV but Billy doesn’t. It’s unbelievable.”

“This is amazing – he had an operation a week ago,” he continued while assuring us that little Billy is “doing great” despite the circumstances. “He has one more surgery. They say he’s probably on track to win at least a bronze medal in the Olympics in 2036.” We’re so happy he’s doing well, especially right before the holidays!

ABC previously announced in a statement on Monday, Dec. 4 that “Billy had a scheduled and successful heart surgery this morning.” Jimmy subsequently took a week off from his late-night show to be with Billy while celebrities including Tracee Ellis Ross, Neil Patrick Harris, and Melissa McCarthy filled in for the emcee.

Back in August, Jimmy — who welcomed Billy with wife Molly McNearney on April 21, 2017 — revealed that his little boy was in need of more surgery even though he already underwent open-heart surgery moments after his birth. “He has to have two more open-heart surgeries. We would like to get them over with and not have to think about it all the time, but it could definitely be worse,” Jimmy told The Hollywood Reporter.

Jimmy made headlines earlier this year when he announced his son’s heart disease during his show in an emotional speech. “I knew I had to say something, and I knew that I would get emotional. It occurred to me that maybe we could make it into something positive. I had a lot of time to think at the hospital, and it just so happened that our government was deciding whether or not millions of people should have health care at that time,” he told THR of his decision to make a statement. “I think it made a big impact on American citizens. I’m not sure, based on how our so-called leaders voted, whether it made a big impact on the Senate or House.”

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Jimmy with his wife, daughter, and son.

Despite his health obstacles, though, Jimmy has always been vocal about how Billy has made huge strides. “He’s doing great. Young Billy made his first visit to our office today. He’s juggling. He’s translating Flaubert from French into English. He’s really an amazing kid. No — he smiles,” Jimmy recently gushed. “That’s pretty much it. He is very interested in ceiling fans. He likes those a lot. I could get him to pay the same amount for Netflix just to watch ceiling fans.” So cute!

Jimmy and Molly — who tied the knot in July 2013 — are already parents to a three-year-old daughter, Jane Kimmel. The TV star is additionally a father to two older kids — daughter Katie Kimmel, 26, and son Kevin Kimmel, 24 — from his first marriage to Gina Kimmel.