David Foster Says His Daughters Have 'Embraced' Little Brother Rennie and Their 'Unique Situation' (Exclusive)

The father of six tells PEOPLE that his relationships with all his kids — and theirs with each other — are strong

David Foster is celebrating the beautiful bonds throughout his family.

The legendary music producer, 74, spoke with PEOPLE at the Billboard Official Golden Globe After Party on Sunday, where he commented on the recent controversy surrounding his status as a father of six.

The commentary began when Foster shared a video of his 2½-year-old son Rennie drumming to Michael Jackson's hit "Rock With You" on Instagram on Friday. The comments on the post are full of praise for Rennie's musical talent, but one Instagram user took the opportunity to criticize his parenting.

"Lol!!!! He's the dad.....he's also got daughters (he abandoned) older than me," the user wrote in response to someone else.

Foster tells PEOPLE he "didn't see" the comments, but went on to praise his relationship with his five adult children — Allison, 53, Amy, 50, Sara, 42, Erin, 41, and Jordan, 37.

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Related: David Foster Says It's a 'Little Bit Different' Raising a Toddler at 73: 'I Can Offer Him Wisdom'

"My children are great and, obviously, it's a unique situation, probably one that none of us planned for, but my daughters are great, all of them, all five of them are great," Foster says of Amy coming to his defense.

"They've embraced Rennie and it's actually great," he adds, explaining the family tries to "do our best" to keep their bonds strong.

"We have a lot of traveling, but we do our best and it's working out really well," he says.

"My daughters are all self-sufficient. They're all making their own way. They're all doing great. So I'm really proud of all of them and Rennie too. So he's in the spotlight for now."

Foster also shared some more insights into how Rennie has been developing the drum skills the proud dad's wife, Katharine McPhee Foster, caught on camera.

"He's been on the road with us while we toured, my wife and I, and he watched our drummer, JR Robinson, who's an amazing drummer, and he just started watching him when he was like 14, 15 months old, and then he just started playing and banging away and just slowly but surely," Foster tells PEOPLE.

"Then that video that has gone viral is he was just playing in there and I was trying to give him a bit of a lesson and Kat heard it from the other room, so she just walked in. So it's very impromptu," he explains.

"Usually, he would stop playing if he saw a camera, but he sort of went, and then he just kept playing. It was kind of cool."

The producer plans to give his little one "every opportunity" to pursue music if he chooses to, "but I won't be a zealot about it."

"I'm not going to get crazy about it," he shares. "If he stops one day, then so be it."

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