Gwen Stefani thinks being married to Gavin Rossdale is her greatest achievement.

The No Doubt singer has been wife to the Bush musician for 14 years and says it's "unbelievable" that they're still together after so long.

She gushed to America's Elle Magazine: "The first time we ever kissed was right around Valentine's Day.

"It's unbelievable that we've been able to stay together. I feel so proud of us. It's one of my biggest achievements."

In the past the blonde beauty has admitted that her relationship with Gavin - with whom she has two sons, Kingston, four, and Zuma, two - "hasn't been the easiest Journey".

Their union has been rocked by the revelation that British model Daisy Lowe is his lovechild from a relationship he had with her mother Pearl Lowe in the late 1980s, as well as media attention on a homosexual affair he had with gender-bending British pop star Marilyn in his teens.

Gwen said: "I've been with Gavin for 14 years, and, let's face it, that is a huge accomplishment.

"I feel so proud of that - it hasn't been the easiest journey."