Chris Martin and Gwyneth Paltrow's kids sing on stage with Coldplay at Glastonbury

Gwyneth Paltrow with children Moses (left) and Apple (right).
Gwyneth Paltrow with children Moses (left) and Apple (right). Photo: Instagram/Gwyneth Paltrow

Chris Martin and Gwyneth Paltrow's children, Apple,11, and Moses, 9, followed in their famous dad's footsteps over the weekend, jumping onstage at Glastonbury to sing with Coldplay.

Paltrow was there too, smiling as she took photos of her two backing vocalists singing Up & Up alongside the band. The proud mum later posted footage of their performance to her Instagram account.

Despite "consciously uncoupling" in March 2014, Martin and Paltrow are often spotted together, out and about, with their kids.

At the time of their separation, the couple described themselves as "parents first and foremost, to two incredibly wonderful children."

And, over the last few years, they've taken a refreshing approach to co-parenting – coming up with a unique arrangement that works for the young family.

"We spend a lot of time together," Paltrow told Glamour magazine, of her ex, earlier this year. "He's been away for two weeks (promoting his album). Last night he got in at midnight and slept here so he could surprise the kids in the morning, we could all have breakfast, and he could take them to school."

"…We're not living together," she said, "but he's more than welcome to be with us whenever he wants. And vice versa."

Paltrow added that the family often spend a weekend together, and holiday together, too.

Of their relationship, the actress and mum-of-two explained, "We're still very much a family, even though we don't have a romantic relationship. He's like my brother."