In the old school Instagram snap, Gwen and Gavin stand side by side, with the new Voice judge all smiles as she strikes a coupled up pose next to her man rocking a leather jacket, crop top, bright pants and a leopard belt.
Gavin, meanwhile, tries to play it cool, cracking a smile and folding his arms in a black zip-up sweater and jeans. "[heart emoticon] @gavinrossdale," Gwen captioned the shot.
Back in June, Gavin told Us Weekly he and Gwen's relationship is still going strong, adding, "We have so many kids now, no matter what, it's rock solid."
Meanwhile, the No Doubt rocker also chatted about their relationship back in 2012 to Marie Claire, telling the mag reaching their 10-year anniversary was, "A miracle."
"My biggest accomplishment is my marriage so far," she continued. "Because it's hard, everyone knows it's hard. [Marriage] is something that I always wanted to do successfully. It was a dream of mine. I like the official-ness and the family-ness of it all, having the same name and making decisions together."
Whatever the duo was doing – and apparently still is – seems to be working. "[Our relationship] is better than it's ever been," Gwen went on. "Like, we're learning about each other all the time. He's an amazing dad, he works so hard -- I can hear him writing songs through the wall, and it is at a much quicker pace than me!" He balances me out. And he -- he never stops liking me, which is awesome! It makes me feel happy, that someone likes me as much as he does."
The duo tied the knot in 2002 and has four children together, Kingston, Zuma, Apollo and Flynn.