United Kingdom, April 28 -- Demi Lovato's marriage to Jutes is full of "laughter" and the relationship brings her "so much joy".

The 33-year-old Skyscraper star has opened up about her first year of married life as she prepares to celebrate her first wedding anniversary with her husband in May and she's revealed she's "happier than ever" almost a year after tying the knot.

Demi told Heat magazine: "I am having so much fun. We laugh non-stop. Like, we stay up late crying tears from laughing so hard and we just have so much fun together. I wouldn't say that it feels like work, you know, it just feels like a really loving, supportive partnership, that brings me so much joy ...

"I couldn't be happier."

Demi also reflected on her big day -...