EXCLUSIVE: Simon Cowell Gushes Over Son Backstage at 'America's Got Talent': 'He's Going to Follow Me'

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ET's Denny Directo was on hand for the death-defying acts and amazing vocal performances for the first night of America's Got Talent's live performances, but what got us most was Simon Cowell backstage talking about his next big act -- his son Eric.

"He's doing amazing!" Cowell told ET. "He's like two and a half years old. He loves music, loves dancing. He's going to follow me into what I do. I know that."

WATCH: Simon Cowell Says He Was 'Surprised' By Liam Payne Signing a Solo Contract

Cowell previously opened up to ET about Eric back in May, where he said, "He does remind me of when I was younger because he knows how to get away with things." During the same interviews he also admitted that initially he wasn't sure if his son liked him.

"They don't respond to you and they cry and I thought, 'Oh God, maybe he'll never like me,'" Cowell said at the time. "Then one day he started talking to me and it was, 'Oh my God!'"

WATCH: Meet Simon Cowell's New Son Eric!

Cowell isn't the only parent on AGT's panel of judges. Mel B is all about family, too, and just hours before the show taping, her kids were jamming in the car with her in an Instagram video.

"We do have microphones in the car," she told ET. "And this is what happens on a lot of our car journeys."

America's Got Talent airs Tuesdays and Wednesdays at 8 p.m. ET/PT on NBC.