Simon Cowell Promised to ‘Be Nice’ to Adam Lambert During Their AGT Reunion

America's Got Talent: All-Stars came to an end February 27th with a finale packed with show-stopping Acts. And we have a winner: the self-taught aerialist Aidan Bryant, who first charmed the AGT Judges in Season 16 with his gravity-defying routines.

Bryant teamed up with the Bello Sisters for an unforgettable performance during the AGT: All-Stars finale, and it was taken to new heights when legend, icon, and powerhouse singer Adam Lambert took the stage.

Lambert jumped in on the AGT: All-Stars action with an electrifying performance of Sia's "Chandelier." The track was perfect for Bryant and The Bello Sisters' sky-high Act, with Lambert's masterful vocals bringing the house down. The Act earned a standing ovation from the AGT Judges, which placed Lambert face-to-face with Simon Cowell, yet again.

For context: Lambert and Cowell go way back, brushing shoulders for the first time during Lambert's American Idol days. (He got runner-up for Season 8.)  And while Lambert wasn't competing in the All-Stars finale, many fans were waiting with bated breath when Terry Crews asked Cowell what he thought of the performance. 

"That was amazing!" Cowell gushed. "Adam, I have to say this. We've known each other a long time-"

"I'm having major déjà vu..." Lambert joked, earning a chuckle from the crowd.

"But this time, I'm going to be nice," Cowell promised before showing his former Contestant some love. "Because Adam, you are honestly one of the nicest people in show business. I'm so proud of everything you've achieved." 

But back to All-Stars winner Aidan Bryant. "It's crazy. I've been working for this really hard and I just feel like it really paid off this time and I got to show a lot more. I got to show a lot more dynamic skills that I haven't been able to, so I'm happy," Bryant told People following his life-changing win. "It's a really big deal for me. ..now that I came back on this season, I was just ready to get it. I was ready to prove to everyone that I can be No. 1 as an aerialist because an aerialist has never won before, and I am super honored to take that spot."

Congratulations, Aidan Bryant!

Watch AGT: All-Stars on NBC and Peacock