Simon Cowell is sidelined from the America's Got Talent judges' table for the start of the Season 21 live shows while he recovers from back surgery.
Simon Cowell is taking a temporary medical leave from America's Got Talent to recover from a scheduled back surgery. While he is out, the show is rotating in guest judges like Kenan Thompson to keep the live shows moving. Simon is expected to return before the Season 21 finale, but expect a softer, funnier vibe in the judges' semi-circle in the meantime.
Simon’s back has been a recurring storyline for years, dating back to that electric bike accident that put him in surgery for hours. This latest absence isn't a new crisis; it is a planned recovery period following a follow-up procedure to ensure he stays mobile for the long haul. For a guy who basically lives in the judge's chair across multiple continents, taking a few weeks off is a significant move, but it is purely about health.
The live shows are the most grueling part of the America's Got Talent schedule, requiring long hours and high energy. Rather than trying to power through in a brace, Simon is benching himself to make sure he is 100% for the final rounds.
Filling Simon’s chair is no small task. You need someone who can command the room without being a carbon copy of the boss. Kenan Thompson is the perfect choice because he doesn't try to be the "mean" judge. He brings a comedy-first perspective that de-escalates the tension.
When Simon is missing, the show loses its primary filter. Simon is the one who will tell a contortionist that their act is "revolting" or tell a singer they picked the wrong song. Without that critical edge, the judging panel can sometimes lean into a "everyone is amazing" loop. Kenan is great for keeping the energy high, but the stakes feel different when the guy with the buzzer-happy thumb is at home on bed rest.
If America's Got Talent is your family’s go-to "bridge show"—the one thing everyone from the 7-year-old to the grandparents can agree on—the dynamic is going to feel a bit lighter. For kids, Simon often represents the "scary teacher" archetype. He’s the one they want to impress. Watching the contestants navigate a panel that is purely supportive is a different experience.
This is a good window to talk about the value of critique. You can ask your kids: "If Simon were there, what would he have said about that performance?" It helps them see that being "mean" in a professional context is often just a high bar for excellence.
If your family is looking for other variety-style hits while waiting for the full panel to return, check out our best shows for kids list for high-energy alternatives.
Don't treat these episodes as filler. The guest judge era of AGT usually produces some of the most viral moments because the regular judges (Howie, Heidi, and Sofia) have to step up their game to fill the vacuum.
- Watch for the shift in Howie: Howie Mandel often takes over as the "technical" judge when Simon is out. Watch how he gets more specific with his critiques to balance out the guest's enthusiasm.
- Analyze the guest's "Golden Buzzer" style: Guest judges often get to use the Golden Buzzer. It’s a great way to see what someone like Kenan values versus what Simon looks for.
- Track the return date: The show is set to bring Simon back as soon as he is cleared by doctors. Based on the recovery timeline, he should be back in his seat for the semi-finals.
Q: Why is Simon Cowell not on AGT tonight? He is recovering from a scheduled back surgery and is taking a few weeks of medical leave to ensure a full recovery before the end of the season.
Q: Who is replacing Simon Cowell on AGT? The show is using a rotating cast of guest judges. Kenan Thompson is one of the primary replacements, bringing his SNL-honed comedy timing to the panel.
Q: Is Simon Cowell leaving AGT for good? No. He remains the executive producer and lead judge. This is a temporary absence, and he is expected to return to the live shows later this season.
Q: When will Simon Cowell be back on AGT? He is expected to return for the semi-final rounds of Season 21, once his doctors have cleared him to travel and sit for the long live broadcasts.
The show is in good hands with the guest rotation, but Simon’s absence is felt. He provides the friction that makes the "yes" votes mean something. Enjoy the change of pace with Kenan, but expect the intensity to ramp back up once the boss returns for the finale.
For the full breakdown of what else to watch with your crew, see our digital guide for elementary school or our best movies for kids list if you're planning a weekend marathon.