Their marriage may be over, but Gwen Stefani and ex-husband Gavin Rossdale made some adorable kids while they were together.

The No Doubt frontwoman was photographed with the couple's three children, -- Kingston, 9, Zuma, 7, and Apollo, 18 months -- backstage at the band's performance at the Jazz Aspen Snowmass music festival over the holiday weekend. 

Zuma, front and center, looked cute in a skateboarding sweatshirt, Kingston sported a Mickey Mouse tee and baby Apollo was adorable in stripes.

The boys' famous mama looked sexy and stylish as ever for the performance, the 45-year-old singer rocking blue jeans, a bodysuit and black blazer. She wore her hair slicked back on one side, matching her ex Tony Kanal's shade of blonde. 

No Doubt has been touring the festival circuit all year long, kids in tow.

"There's probably eight of the 12 kids here now. Three for me, two for Adrian, Gwen has three, Tony has two and our trombone player Gabriel has two," Tom Dumot told Billboard earlier this year. "It's almost like we're siblings and they're cousins. They all play together. They all have their own relationships and dynamics together."

"During soundcheck yesterday, the kids came up a little later and ran up on the stage," Adrian Young added. "All of a sudden, it was like we’re not working. We were just playing music and our kids are running around."

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